Surname Location Reference Project - K
| Surname | Slovakia Location | County | Submitter | State or Province | Reference Number |
|---|---|---|---|---|---|
| KABAT | Gbely | Nitra | Vavro | OH | 1155 |
| KABAT | Gbely | Nitra | Kubina | ONT | NI-081A |
| KACHURIK | Michalov | Saris | Kachur | OH | 0028 |
| KACIK | Zubak | Trencin | Fajer | OR | TR-001A |
| KACIR | Hnilcik | Spis | Grohovsky | IN | 0355B |
| KACIR | Hnilcik | Spis | Ponist | PA | 0824 |
| KACLIK | Benus | Zvolen | Ponist | PA | 1505 |
| KACMAR | Blazice | Abov | Glovnas | OH | 0371 |
| KACMAR | Janov | Saris | Gecik | OH | SA-171A |
| KACMAR | Mala Zaluzice | Uz | Sturey | PA | 0136 |
| KACMAR | Malcov | Saris | Jewell | OH | SA-101C |
| KACMAR | Velke Ozorovce | Zemplin | Podolak | PA | 0534A |
| KACMARCIK | Stara Lubovna | Spis | Frey | NJ | 0853A |
| KACMARSKY | Stara Lubovna | Spis | Sisolak | TX | SP-072 |
| KACSMAR | Zemplinska Teplica | Zemplin | MD | ZE-024 | |
| KACUR | Sacurov | Zemplin | CAN | ZE-025 | |
| KACVINSKY | Fricovce | Saris | Sedlak | FL | 1336A |
| KACVINSKY | Janovce | Spis | Kavinsky | TX | 1614 |
| KACVINSKY | Spissky Stiavnik | Spis | Mihalek, Sr | .WI | 1061 |
| KADELAK | Trencin | Trencin | Cacurak | PA | 0741 |
| KADLECIK | Malzenice | Nitra | Torres | CA | NI-006A |
| KAKACKA | Orava | Gedeon | OH | 1195A | |
| KALATA | Lenartov | Saris | Kalata | PA | SA-102 |
| KALATA | Spisska Bela | Spis | Samson | MI | SP-063A |
| KALAVSKY | Margecany | Spis | Dorko | OH | 0235A |
| KALENA | Klenova | Zemplin | Badnarik | IN | 1352 |
| KALOVCSAK | Moravany | Zemplin | Dugan | PA | 1474 |
| KALUS | Zariecie | Trencin | Moravec | WI | 1345 |
| KAMENCA | Humenne | Zemplin | Okapal | OH | 1530 |
| KAMENICKY | Markusovce | Spis | Zierow | MT | 1422 |
| KAMENICKY | Brekov | Zemplin | MD | 1706 | |
| KAMENSKY | Cejkov | Zemplin | Raistrick | DE | 1522 |
| KAN | Bacuch | Zvolen | Stano | OH | 1471 |
| KANCZA | Slavkovce | Zemplin | Fedor | WA | 1238A |
| KANDA | Markovce | Zemplin | Kanda | CA | 0417 |
| KANDRA | Jarovnice | Saris | Elias | PA | SA-128A |
| KANDRICK | Kluknava | Spis | Baca | OH | 1608 |
| KANSKI | Zaborov | Saris | Perhach | IN | 0316 |
| KANTOR | Keckovce | Saris | Mardis | OH | 1466 |
| KANUCH | Kukova | Saris | Ginovsky | MD | SA-194B |
| KANYA | Plavnica | Saris | Galbraith | PA | SA-195A |
| KAPINUS | Jaklovce | Spis | Kapinus | TX | 0146 |
| KAPINUS | Jaklovce | Spis | Kapinus | PA | SP-027 |
| KAPITAN | Sacurov | Zemplin | Kapitan | ONT | 0113 |
| KAPITAN | Sacurov | Zemplin | Sibenik | PA | 0180 |
| KAPRAK | Olsov / Krasna Luka | Saris | Gerard | WA | SA-151 |
| KAPURA | Kavecany | Saris | Hudak | WV | SA-197 |
| KAPUSTA | Lieskovany | Spis | Kapusta | TX | 1506 |
| KAPUTA | Lenartov | Saris | Kaputa | VA | 0494 |
| KAPUTA | Lenartov | Saris | Hanna | PA | SA-211 |
| KARABA | Drahovce | Nitra | Mihalek, Sr | .WI | 1001 |
| KARABA | Drahovce | Nitra | Howard | NY | NI-054A |
| KARABIN | Vikartovce | Spis | Matovic | PA | 1185 |
| KARABINOS | Dubovica | Saris | Karabinos | PA | SA-051 |
| KARABINOS | Fintice | Saris | Orsulak | PA | SA-177 |
| KARAS | Nizna Slana | Gemer | Stropki | OH | 1214 |
| KARAS | Povina | Trencin | Karas | PA | 0687 |
| KARHNAK | Markusovce | Spis | Kapusta | TX | 1506A |
| KAROVIC | Lab | Bratislava | Karovic | NY | 0805 |
| KARPAC | Lukacovce | Zemplin | Karpach | MI | 0388 |
| KARPISCAK | Vrbovce | Nitra | Zalesak | NY | NI-083 |
| KASCAK | Mestisko | Saris | Kaschak | PA | SA-107 |
| KASCAK | Mestisko | Saris | Beros | OH | SA-124A |
| KASCAK | Trebisov | Zemplin | OH | ZE-026 | |
| KASHNIK | Novy Ruskov | Zemplin | NC | ZE-027 | |
| KASICKY | Nededza | Trencin | VA | 1677 | |
| KASIK | Horny Vadicov | Trencin | Duffy | MA | 0035 |
| KASIK | Horny Vadicov | Trencin | Suvar | OH | 0879C |
| KASIK | Myslina | Zemplin | PA | ZE-028 | |
| KASIN | Lenartov | Saris | Bennish | PA | SA-115 |
| KASINA | Bela | Turiec | Busch | CT | TU-001A |
| KASINAK | Poloma / Sarisske Dravce | Saris | Daley | CT | SA-202 |
| KASPER | Janovce | Saris | Casper | NY | 1114 |
| KASPER | Zborov | Saris | Kasper | CA | SA-096 |
| KASPRISIN | Raslavice | Saris | Hipp | OH | 0340 |
| KATANA | Jablon | Zemplin | Mitchell | CT | 0381 |
| KATRAK | Namestovo | Orava | Hacholski | CA | 0551A |
| KATUH | Porubka | Uz | Vargo | PA | 0745 |
| KAVKA | Vinne | Uz | May | MI | UZ-006 |
| KAYDA | Pohronska Polhora | Zvolen | Constant | CA | 1630 |
| KAZIMIR | Teriakovce | Saris | Krisko | OH | 0201 |
| KEBEL | Myslava | Abov | MI | 1709A | |
| KEKELY | Makov | Trencin | Kekely | ONT | 0653 |
| KENDERES | Humenne | Zemplin | Butrie | PA | 0429 |
| KEPIC | Snina | Zemplin | Wendell | OR | 1383 |
| KERECMAN | Vulsinky | Uz | Kozak | NY | 0411 |
| KERNASEVICH | Suwak | PA | 1523A | ||
| KICIN | Gerlachov | Spis | Rusnak | OH | SP-049A |
| KICKO | Brutovce | Spis | Kitsko | PA | 0739 |
| KIDON | Velka Lipnica | Orava | Habina | NJ | 0533A |
| KILIANY | Forbasy | Spis | Zimmerman | OH | 1163 |
| KILIK | Revucka | Gemer | Hicar | OH | 0060A |
| KILIK | Revucka | Gemer | Hodos | PA | GC-009 |
| KINDYA | Jarabina | Spis | Koban | FL | 0957B |
| KIRAL | Cerhov | Zemplin | OH | ZE-029 | |
| KIRSCHBAUM | Vestenice | Nitra | Kirschbaum | ONT | NI-053 |
| KISA | Krpelany | Turiec | FL | 1717 | |
| KISEL | Vazec | Liptov | Kisel | MN | 1152 |
| KISELA | Uzovsky Salgov | Saris | O'Drobinak | IN | SA-158 |
| KISLY | Zvolen | Zvolen | Mihalek, Sr | .WI | 1056 |
| KLACKO | Kolarovice | Trencin | IL | 1720A | |
| KLC | Bzince pod Javorinou | Nitra | Ochonicky | MO | 0546A |
| KLC | Myjava | Nitra | Rung | IA | NI-075A |
| KLCO | Ockov | Nitra | Klco | MI | 0138 |
| KLCO | Ockov | Nitra | Lorincz | MI | 1303 |
| KLCSO | Basovce | Nitra | Chuhran | FL | 1599A |
| KLEIN | Spisske Vlachy | Spis | Kitsko | PA | 0739C |
| KLEINJ | Velky Folkmar | Spis | Kline | OH | 0431 |
| KLEMBARA | Brezovica | Saris | Duca | CT | SA-199 |
| KLEMBARA | Tichy Potok | Saris | Klembara | OH | SA-192 |
| KLESKEN | Predajna | Zvolen | Gabon | ONT | 0063 |
| KLIMA | Chmelov | Saris | Centko | VA | SA-219B |
| KLIMEK | Habovka | Orava | Ward | IL | 1251 |
| KLIMEK | Mokroluh | Saris | Glovnas | OH | 0371C |
| KLIMENT | Lab | Bratislava | Nangle | NY | 1236 |
| KLIMKO | Velky Saris | Saris | Kysel | NJ | 0794 |
| KLOSTERMAN | Zazriva | Orava | Klosterman | FL | 0110A |
| KLUCHO | Rajecka Lesna | Trencin | Klucho | OH | 0800 |
| KLUCKA | Nova Bystrica | Trencin | Mihalek, Sr | .WI | 1082 |
| KLUKAN | Dlhe Pole | Trencin | Marcinek | PA | 0232 |
| KMEC | Kokosovce | Saris | Ference | OH | 0002A |
| KMEC | Tulcik | Saris | Kmet | PA | 0363 |
| KMET | Martin | Turiec | Reardon | IL | 0325 |
| KMETZ | Mala Domasa | Zemplin | Mihalek, Sr | .WI | 1097 |
| KMETZ | Modra | Bratislava | Kmetz | NY | BP-049 |
| KNAPIK | Plavnica | Saris | Knapik | OH | SA-134 |
| KNAPIK | Plavnica | Saris | Galbraith | PA | SA-195 |
| KNAPIK | Presov | Saris | Galbraith | PA | 1525 |
| KNAPO | Papradno | Trencin | Knapo | TX | 0630 |
| KNAPP | Sulin | Saris | Pfeilstucker | MI | 1538 |
| KNAZE | Hradiste | Nitra | Knaze | CA | NI-041 |
| KNIS | Kosice | Abov | Kimmey | IL | 0750 |
| KNIZACKY | Nizna | Orava | Supina | TX | 0571B |
| KNUROWSKI | Kurov | Saris | Konorosky | CA | SA-178 |
| KOBAN | Kamienka | Spis | Koban | FL | 0957 |
| KOBINA | Oscadnica | Trencin | Kopec | NJ | 1511A |
| KOCAK | Zemplin | Shanta | CA | 1154A | |
| KOCERHA | Strocin | Saris | Dorsett | CA | 1428A |
| KOCHAN | Cernina | Zemplin | Lukacs | PA | 1479C |
| KOCHERA | Rusky Kazimir | Zemplin | Melchor | VA | 0716 |
| KOCIAN | Bratislava | Bratislava | Dandar | OH | BP-089 |
| KOCIAN | Trakovice | Nitra | Dandar | OH | NI-020 |
| KOCIS | Besa | Uz | Pitel | IL | 1648A |
| KOCIS | Krivany | Saris | Koches | NY | 1643 |
| KOCIS | Michalok | Zemplin | Krapacs | OH | 0348 |
| KOCIS | Roznava | Gemer | Kochis | PA | 0017 |
| KOCSERHAN | Sredneje | Uz | Dugan | PA | 1474A |
| KOCUR | Tuhrina | Saris | Kocur | IA | SA-005 |
| KOCUREK | Polanovce | Spis | Kopanic, Jr | .PA | 0767D |
| KOCZAK | Gbely | Nitra | Johnson | MN | NI-063A |
| KOCZUR | Skalite | Trencin | Rokicak | MI | 1156A |
| KOHUT | Nemecka | Zvolen | Luptak | ONT | 0198 |
| KOHUTKA | Huta | Uz | Terlesky | CT | 0071A |
| KOJIS | Koseca | Trencin | Kojis | OH | 0924 |
| KOKOSKA | Kapusany | Saris | Erzen | IL | 1609A |
| KOLAR | Bratislava | Bratislava | Klucho | OH | BP-053 |
| KOLAR | Hromos | Saris | Wakelee | CT | SA-054 |
| KOLARCIK | Spisske Bystre | Spis | Smith | BC | 0758 |
| KOLARIK | Hrisovce | Spis | Zehala | OH | 0365B |
| KOLARIK | Liptovsky Mikulas | Liptov | Moravec | WI | 1346 |
| KOLARSKY | Lucka | Spis | Doman | OH | SP-018C |
| KOLARSKY | Lucky | Liptov | Mihalek, Sr | .WI | 1050 |
| KOLCUN | Malcov | Saris | Jewell | OH | SA-101 |
| KOLENIC | Dolne Dubova | Bratislava | Kolenic | MI | BP-069 |
| KOLENICH | Kendice | Saris | Schmidt | IL | 0280 |
| KOLESAR | Stretava | Uz | Durall | KS | 1620 |
| KOLESAR | Vola | Zemplin | PA | ZE-030 | |
| KOLESAR | Nizny Klatov | Abov | VA | 1696A | |
| KOLLAR | Holic | Nitra | Oswald | NY | NI-035C |
| KOLLAR | Holic | Nitra | Sedlak | PA | NI-042A |
| KOLLAR | Kuty | Nitra | Palkovic | PA | 0616 |
| KOLLAR | Lipany | Saris | Mischik | VT | 1160 |
| KOLLAR | Soporna | Nitra | Vondriska | OH | 0680A |
| KOLLAR | Udol | Saris | Ridilla | FL | 0961A |
| KOLNIK | Kostolne | Bratislava | Kolnik | MO | BP-041A |
| KOLODZEJ | Nizne Lapse | Spis | Seliga | NY | 0238 |
| KOLODZIEJ | Nova Bela | Spis | MD | 1693A | |
| KOLONAY | Vysna Rybnica | Uz | Kolonay | VA | 0602 |
| KOLTON | Horna Zubrica | Orava | MN | 1664 | |
| KOMANCA | Sacurov | Zemplin | Komonchak | NY | 0186 |
| KOMAR | Husak | Uz | Dursin | MI | UZ-011 |
| KONA | Banovce nad Bebravou | Trencin | Kona | IL | 0920 |
| KONECNIK | Myjava | Nitra | Konecnik | NY | 0980 |
| KONECNY | Hendrichovce | Saris | Gondeiro | MT | 0129 |
| KONIC | Cataj | Bratislava | Sinak | FL | 0965 |
| KONIK | Benatina | Uz | Abrams | NY | UZ-009 |
| KONKOL | Nova Lubovna | Spis | Konkoly | OH | 0530 |
| KONKOL | Nova Lubovna | Spis | Ziajka | FL | 1254 |
| KONOPEUS | Vojnany | Spis | Fetchko | PA | 0482A |
| KONTROS | Hankovce | Saris | Gomola | NY | 1531C |
| KONUS | Novaky | Nitra | Stelmach | PA | NI-031 |
| KOPACH | Oscadnica | Trencin | Kopec | NJ | 1511 |
| KOPACKO | Bardejov | Saris | Kopacko | MI | 0279 |
| KOPANICAK | Harichovce | Spis | Mortimer | PA | SP-077 |
| KOPANICAK | Tvarozna | Spis | Kopanic, Jr | .PA | 0767 |
| KOPAS | Velke Kostolany | Nitra | Horvath | NY | NI-021C |
| KOPAS | Zastranie | Trencin | Bielik, Jr | .MA | 0585A |
| KOPASZ | Poproc | Abov | Kasmann | MO | 1518D |
| KOPCIK | Bertotovce | Saris | Maslar | PA | SA-047A |
| KOPCO | Zemplinska Teplica | Zemplin | Kopco | OH | 0321 |
| KOPEHAK | Hendrichovce | Saris | Gondeiro | MT | 0129A |
| KOPERA | Oscadnica | Trencin | Kopera | PA | 1302 |
| KOPESKY | Spacince | Bratislava | Drahovsky | PA | 1265 |
| KOPKAS | Levoca | Spis | Frause | WA | 0418 |
| KOPKAS | Levocska Dolina | Spis | Stahl | OH | SP-046 |
| KOPKAS | Spisska Nova Ves | Spis | Takitch | OH | 0617A |
| KOPNICKY | Brezovica | Saris | Amidon | CT | 0424B |
| KOPPER | Jamnik | Spis | Zierow | MT | SP-038 |
| KOPRAL | Osturna | Spis | Hudak | PA | SP-021A |
| KOPRONICA | Sebechleby | Hont | Homola | OH | HO-001A |
| KORABIK | Trencin | Higgins | MO | 0420A | |
| KORBELIC | Blatne | Bratislava | Scarfutti | PA | BP-010 |
| KORBUL | Banovce nad Ondavou | Zemplin | Donch | CA | 0044 |
| KORCHNAK | Brutovce | Spis | Backus | OH | 0248 |
| KORCHNAK | Brutovce | Spis | Korchnak | PA | 0396 |
| KORCHNAK | Brutovce | Spis | Korchnak | IN | 1313 |
| KORDIK | Jasenie | Zvolen | Kordik | IL | 0629 |
| KORECKO | Herlany | Abov | Korecko | OH | 0976 |
| KORENI | Turzovka | Trencin | Minarik | MI | 0458 |
| KORENY | Dlhe Pole | Trencin | IN | 1675A | |
| KORIM | Cinobana | Novohrad | Hirsch | OH | 1482A |
| KORMAN | Sol | Zemplin | Simerlein | WV | 1119 |
| KORNOS | Krasna Horka | Orava | Novak | OH | 1378C |
| KORSKI | Fricka | Saris | Aldrich | OR | 1499B |
| KOSAR | Trebisov | Zemplin | MI | ZE-031 | |
| KOSC | Sambron | Saris | Lukacs | PA | 1479A |
| KOSCAK | Lendak | Spis | Koscak | OH | 0993 |
| KOSCO | Brezovica | Saris | Kosco | TX | 0553 |
| KOSCO | Sacurov | Zemplin | Kapitan | ONT | 0113A |
| KOSELA | Klcov | Spis | Mesaros | PA | 1372A |
| KOSICKA | Banske | Zemplin | IA | ZE-032 | |
| KOSIK | Predajna | Zvolen | Cibula | FL | 0269 |
| KOSTELNIK | Brezovica | Saris | Nivert | VA | 0422 |
| KOSTELNIK | Slovinky | Spis | Kostelnik | MO | 0611 |
| KOSTELNY | Brezova pod Bradlom | Nitra | IL | 1665A | |
| KOSTIVAL | Davidov | Zemplin | Kostival | PA | 1284 |
| KOSTURA | Beloveza | Saris | Matyas | OH | 0600 |
| KOSTURKO | Bratislava | Proctor | NJ | 1623A | |
| KOSZTURA | Komarany | Zemplin | Lund | WA | 0958A |
| KOTALIK | Dubinne | Saris | Kotalik | AZ | 1273 |
| KOTIAN | Jalovec | Nitra | Matjasko | CA | NI-005A |
| KOTLAR | Baldovce | Spis | Kaputa | VA | 0495 |
| KOTLEBA | Potvorice | Nitra | Kotleba | IL | 0459 |
| KOTRADY | Torysky | Spis | Mencel | VT | 0026D |
| KOTYUHA | Zavadka | Spis | Guidos | OH | 1274 |
| KOTZUN | Jarabina | Spis | Ridilla | FL | 0961 |
| KOVAC | Capor | Nitra | Kovac | OH | NI-017 |
| KOVAC | Mnichova Lehota | Trencin | Peterson | MN | 1176 |
| KOVAC | Nizna | Nitra | Kovac | OH | NI-008 |
| KOVAC | Trebisov | Zemplin | Cassel | MI | 1339A |
| KOVAC | Vazec | Liptov | Kovatch | OH | 0218 |
| KOVAC | Velke Ozorovce | Zemplin | Podolak | PA | 0534 |
| KOVAC | Ziar | Liptov | Schwarz | NJ | 1577 |
| KOVAC | Zilina | Trencin | Josefoski | PA | 0132A |
| KOVACH | Zborov | Saris | Kurtik | OH | SA-214 |
| KOVACIK | Jasenie | Zvolen | Prindes | IL | 0291A |
| KOVACIK | Kotesova | Trencin | Kovacik | PA | 1475 |
| KOVACIK | Kotesova | Trencin | Kovacik | PA | TR-007 |
| KOVACIK | Nedanovce | Nitra | Balaz | ONT | NI-045 |
| KOVACIK | Soporna | Nitra | Vondriska | OH | 0680C |
| KOVACIK | Nitra | Ondras | CT | 1310A | |
| KOVACS | Szaloka | Kovach | PA | 0027 | |
| KOVAL | Drienov | Saris | Besserman | IL | 1457B |
| KOVAL | Lipovec | Turiec | Mihalek, Sr | .WI | 1089 |
| KOVALAK | Circ | Saris | Kovalyak | MD | 0012 |
| KOVALCIK | Harichovce | Spis | Kopanic, Jr | .PA | 0767A |
| KOVALCIK | Osturna | Spis | Balog | MI | SP-069 |
| KOVALCIN | Bardejov | Saris | Kovalcin | PA | 1147 |
| KOVALCIN | Raslavice | Saris | Kovalcin | FL | SA-155 |
| KOVALIC | Giraltovce | Saris | Kovalic | PA | 0212 |
| KOVANIC | Lozorno | Bratislava | Kovanic | IL | 0151 |
| KOVARIK | Gbely | Nitra | Kovanis | CA | 1628 |
| KOZACEK | Turie | Trencin | Tilisky | OH | 1361 |
| KOZACIK | Horna | Uz | Mihalek, Sr | .WI | 1099 |
| KOZACIK | Horna Lehota | Orava | Kozacik | AZ | 0727 |
| KOZAK | Bardejov | Saris | Kozak | MS | 0718 |
| KOZEL | Smilno | Saris | Jancosek | CO | SA-133A |
| KOZENY | Bahon | Bratislava | Patoprsty | MI | 0729 |
| KOZLAK | Toporec | Spis | Kozlak | CT | 0474 |
| KOZSIR | Gelnica | Spis | Bankos | PA | 0709 |
| KRACHUN | Abov | Bell | PA | 0971A | |
| KRAJCI | Sebestanova | Trencin | Klems | OH | TR-006A |
| KRAJCI | Vysoka nad Kysucou | Trencin | Krajci | NY | 1596 |
| KRAJICEK | Turzovka | Trencin | Okapal | OH | 1530C |
| KRAJICEK | Velke Rovne | Trencin | Krajicek | CA | 1528 |
| KRAJNAK | Bardejov | Saris | Kearney | PA | 0066A |
| KRAJNAK | Bardejov | Saris | Krajnak | PA | SA-062 |
| KRAJNI | Poluvsie | Trencin | Tilisky | OH | 1360 |
| KRAJNIK | Breznica | Zemplin | Haley | IL | 0256 |
| KRAJSA | Skalica | Nitra | Krajsa | PA | NI-014 |
| KRAL | Bobrov | Orava | Tybor SSCM | PA | 0623A |
| KRAL | Kosice | Abov | Kral | CA | 0766 |
| KRAL | Kovarce | Nitra | Stopka | PA | 0926A |
| KRAL | Rovne | Saris | Rolik | OH | SA-092A |
| KRAL | Spisska Nova Ves | Spis | Erm | MI | 1549 |
| KRALIK | Horny Hricov | Trencin | Kovacik | PA | 1475A |
| KRALOVANSKY | Kralovany | Orava | Clark | OR | 1354 |
| KRAMORIS | Rajec | Trencin | Kramoris | WI | 0481B |
| KRAPACS | Bratislava | Krapacs | OH | BP-076 | |
| KRAVCIK | Fricovce | Saris | Krafcik | VA | 0098 |
| KRAVEC | Nalepkovo | Spis | Kravetz | PA | 0156 |
| KRAVEC | Smilno | Saris | Kravetz | MN | 0412 |
| KRAVECZ | Smilno | Saris | Check | MN | SA-056B |
| KRAYNIK | Vinne | Uz | Chapaitis | PA | 0119 |
| KRCMARIK | Selec | Trencin | Krcmarik | MI | 1571 |
| KREHEL | Klenov | Saris | Kaufman | OH | 1524 |
| KREHELY | Klenov | Saris | Krehely | MD | 0451 |
| KREMPASKA | Tvarozna | Spis | Porter | OH | SP-011A |
| KREMPASKY | Hnilec | Gemer | Krempasky | PA | 0174 |
| KREMPASKY | Hnilec | Gemer | Bakich | OH | GC-002 |
| KREMPASKY | Hnilec | Gemer | Dersey | OH | GC-008 |
| KREMPASKY | Hnilec | Gemer | OH | 1690 | |
| KRESTES | Lysa pod Makytou | Trencin | Sleigh | ID | 1419 |
| KRHLA | Pernek | Bratislava | Krhla | CT | 0886 |
| KRICHTIK | Certizne | Zemplin | PA | ZE-033 | |
| KRIGOVSKY | Dubrava | Spis | Novak | MI | SP-008 |
| KRIGOVSKY | Pavlany | Spis | Doman | OH | SP-018B |
| KRISAK | Zdiar | Spis | Senall | MI | 0504 |
| KRISAK | Zdiar | Spis | Cable | ONT | 0704 |
| KRISKO | Fintice | Saris | Krisko | OH | 0200 |
| KRISTOF | Nova Bystrica | Trencin | Visocky | PA | 0703 |
| KRISTOFEK | Jablonica | Nitra | Palladino | NY | 1442 |
| KRISTOFEK | Spisska Bela | Spis | Samson | MI | SP-063B |
| KRIVOSIK | Brezovica | Saris | Lock | OH | 0732 |
| KRIZOVENSKY | Kosice | Abov | Kristovensky | PA | 0283 |
| KROPINAK | Slovinky | Spis | Likuski | CA | 1433 |
| KROPINAK | Slovinky | Spis | Moskaluk | ALB | 1440 |
| KROVINA | Orovnica | Tekov | Nemcok | MI | 0131A |
| KRUL | Zborov | Saris | Krul | PA | 0895 |
| KRULL | Chmelov | Saris | IL | 1688A | |
| KRUPA | Kamienka | Spis | Krupa | PA | 1327 |
| KRUPA | Valaska Bela | Nitra | Krupa | NJ | NI-079 |
| KRUPITZER | Medzev | Abov | Gardiner | OH | 0991 |
| KRUPPA | Oravske Vesele | Orava | Davidson | SC | 1325 |
| KRUPSKY | Lemesany | Saris | Krupsky | NJ | 0780 |
| KRYNAK | Cigalka | Saris | Aldrich | OR | 1499C |
| KUBACKA | Ludrova | Liptov | Pettinato | NY | 0666 |
| KUBACKA | Ruzomberok | Liptov | Pettinato | NY | 1132 |
| KUBALA | Parnica | Orava | Stefka | PA | 0774 |
| KUBANCSEK | Banska Bystrica | Zvolen | Kubancsek | PA | 1481 |
| KUBANI | Moravany | Saris | Kubani | MI | 1406 |
| KUBAS | Humenne | Zemplin | Pollick | MN | 1478A |
| KUBAS | Lysa pod Makytou | Trencin | Mihalek, Sr | .WI | 1018 |
| KUBASAK | Nitra | Kubasak | CA | 0988 | |
| KUBATKO | Cadca | Trencin | Kubatko | PA | 1629 |
| KUBEK | Liptovska Kokava | Liptov | Muka | MA | 1582A |
| KUBICEK | Bratislava | Bratislava | Janosik | ME | BP-029 |
| KUBICKO | Chminianska Nova Ves | Saris | Molcan | NY | SA-117 |
| KUBIK | Borcova | Turiec | Hooker | AL | TU-003 |
| KUBIK | Horny Vadicov | Trencin | Girard | MA | TR-003 |
| KUBIK | Malcov | Saris | Pustinger | IN | 0875A |
| KUBINA | Smolinske | Nitra | Kubina | ONT | NI-081 |
| KUBINSKY | Velke Levare | Bratislava | Kubinsky | OH | 1178 |
| KUBLA | Stara Bystrica | Trencin | Reed | MI | 0885 |
| KUBLA / TOMCOLA | Stara Bystrica | Trencin | Bozich | PA | 0529 |
| KUBOV | Vikartovce | Spis | Cameron | ONT | 0385A |
| KUBOVIC | Jablonove | Bratislava | Herr | PA | 0635 |
| KUBUSCEK | Durstin | Spis | Griglak | PA | 1342A |
| KUCAVIK | Stiavnik | Trencin | Mihalek, Sr | .WI | 1019 |
| KUCERA | Dolna Suca | Trencin | Karasek | IL | 0312A |
| KUCHERA | Trstena | Orava | VanTassel | PA | 1586A |
| KUCHTA | Matiasovce | Spis | Froncek | PA | 0820 |
| KUCHTA | Nedeca | Spis | Fetsko | PA | 0301 |
| KUCHTA | Toporec | Spis | Zwick | BC | 1561A |
| KUCIK | Luky | Trencin | Mihalek, Sr | .WI | 1020 |
| KUCIK | Puchov | Trencin | Kucik | WI | 0400 |
| KUCKO | Medzany | Saris | Kutsko | OH | 1575 |
| KUDIC | Stropkov | Zemplin | Raser | NJ | 0657A |
| KUDLICA | Rohoznik | Bratislava | Okapal | OH | 1530A |
| KUDLICA | Rohoznik | Bratislava | Patten | NJ | BP-022A |
| KUDRAVY | Strazske | Zemplin | Martin | CA | 1604A |
| KUDRICK | Vranov nad Toplou | Zemplin | IL | ZE-034 | |
| KUDZMA | Sabinov | Saris | Malcovsky | MA | SA-157 |
| KUHARIK | Bardejov | Saris | Kuharik | PA | SA-006 |
| KUHARIK | Bardejov | Saris | Kuharik | PA | SA-113 |
| KUHORIK | Sarisske Luky | Saris | Mihalek, Sr | .WI | 1073 |
| KUKEL | Klenovec | Gemer | Barto | CA | 0527 |
| KUKUCKA | Nitra | Nitra | Kukucka | NJ | 0656 |
| KUKUCKA / LABUDA | Klubina | Trencin | Kukucka | PA | 1300 |
| KUKULA | Trnava | Bratislava | Schmecker | CT | BP-025A |
| KULIC | Sacurov | Zemplin | Sunderland | PA | 0733 |
| KULICH | Rajecka Lesna | Trencin | Kulich | OH | 0501 |
| KULIFAJ | Pohorela | Gemer | Klema | OH | 1122 |
| KUNAS | Slovenska Volova | Zemplin | Kunas | IN | 0434A |
| KUNDAK | Lukov | Saris | Fertal | CA | 0345 |
| KUNDEK | Saris | Uckotter | KY | 1207 | |
| KUNDERNA | Markusovce | Spis | Petrosky | PA | 1450 |
| KUNDIS | Kubachy | Spis | Oden | OH | SP-067 |
| KUNDRA | Dulova Ves | Saris | Tomaskovic | NC | SA-149 |
| KUNDRAT | Kojatice | Saris | Hryniw | NY | 1341 |
| KUNDRAT | Kojsov | Spis | Brousseau | CA | 1605A |
| KUNDRAT | Udol | Saris | Pelehach | PA | 0827 |
| KUNDRAT | Zemplinska Teplica | Zemplin | Kasmann | MO | 1518 |
| KUPCA | Jakubany | Spis | Johnson | NJ | 0314A |
| KUPCSIK | Sarisske Dravce | Saris | Redhead | OH | 0828 |
| KUPKA | Bojnicky | Nitra | Arnold | OH | 0946 |
| KURATOR / JANDURA | Habovka | Orava | Kurator | IN | 0278 |
| KURCINA | Babin | Orava | Migay | ONT | 0245 |
| KUREJ | Onokovce | Uz | Simon | CA | UZ-020 |
| KURIAN | Kosice | Abov | Kurian | PA | 1426 |
| KURIC | Likavka | Liptov | Seely | IL | 0587 |
| KURILA | Kalava | Spis | Rabatin | AZ | SP-068A |
| KURILA | Kluknava | Spis | Kurila | OH | 1578 |
| KURIMSKY | Pecovska Nova Ves | Saris | Kunik | CT | 1157 |
| KURINEC | Smolenice | Bratislava | Kurinec | IL | BP-034A |
| KURITZ | Polianka | Nitra | Kuritz | ME | 0959 |
| KURNAT | Spisska Bela | Spis | Samson | MI | SP-063C |
| KURTA | Novoveska Huta | Spis | Kuharik | PA | SP-036 |
| KURTEK | Likavka | Liptov | Kurtek | PA | 0426 |
| KURUC | Dlha Luka | Saris | Kuruc | IL | SA-152 |
| KURUC | Vislanka | Saris | Greene | VT | SA-021 |
| KURUCZ | Nizne Lapse | Spis | Lorincz | MI | 1304A |
| KURUCZ | Venecia / Lukov | Saris | Sweda | OH | SA-119A |
| KUSHNER | Michalovce | Zemplin | Kushner | NJ | 0014 |
| KUSHNIR | Krasna Luka | Saris | Skala | OH | 1194A |
| KUSNIR | Pcoline | Zemplin | Kushner | NJ | 1492 |
| KUSNIRIK | Trebisov | Zemplin | Kusnirik | NJ | 1402 |
| KUSNYIR | Turany nad Ondavou | Zemplin | Kushner | NJ | 1484 |
| KUTNEY | Bartosovce | Saris | Kutney | OH | SA-139 |
| KUZELA | Hajske | Nitra | Vatilla | OH | NI-069 |
| KUZILA | Lucina | Saris | Kuzilla | PA | 0506 |
| KUZMA | Nacina Ves | Zemplin | Krapacs | OH | 0350 |
| KUZMA | Starina | Zemplin | NY | ZE-035 | |
| KUZMIK | Vazec | Liptov | Kovatch | OH | 0219 |
| KVARTEK | Smilno | Saris | Quarrick | PA | 1461 |
| KVAZSNICA | Pruske | Trencin | Mihalek, Sr | .WI | 1021 |
| KVORJAK | Zavadka nad Hronom | Gemer | Betz | OH | 1472A |
| KYSEL | Stropko | Zemplin | Choby | PA | 1365A |
| KYSEL | Velky Saris | Saris | Kysel | NJ | 0793 |