- Kandel
- Kanengieser
- Kanis
- Kantor
- Kaplan
- Kaplowitz
- Karan
- Karas
- Karcher
- Karn
- Karos
- Karp
- Kartoff
- Anna (b. about 1896, d. 1929)
- Kashins
- Kaspers
- Kasten
- Miriam (b. about 1862, d. 1949)
- Katz
- Anna (b. 1620, d. 1692)
- Arthur Solomon (b. 1924, d. 1993)
- Barbara (b. 1647, d. 1669)
- Barbara (b. 1659, d. 1731)
- Beth Ann
- Catharina (b. 1658, d. 1721)
- Esther
- Fela (b. 1919, d. 2013)
- Hadas Liran
- Hanns Jacob (b. 1656, d. 1724)
- Hans (b. 1550)
- Hans (b. estimated 1617, d. 1683)
- Hans (b. 1653, d. 1654)
- Janet R.
- Jeff
- Jennie (b. 1875)
- Jerg (b. 1655, d. 1730)
- Maria (b. 1651, d. 1652)
- Martin (b. 1591, d. before 1647)
- Martin (b. 1650)
- Morris (b. 1879)
- Netanel Yair
- Noam Shai
- Peske (b. 1870, d. 1943)
- Peter S.
- Samuel
- Samuel (b. 1903)
- Stephanie Lynn
- William Henry, ("Zev")
- Yaniv Michael
- Katz-Glotzer
- Katzowitz
- Kaufer
- Kaufman
- Kawin
- Kaye
- Kayzer
- Bajla (b. about 1793, d. 1831)
- Kearns
- Keayne
- Keehn
- Caroline (b. 1853, d. 1919)
- David (b. 1850, d. 1884)
- Edna Earle (b. 1916, d. 1950)
- Elizabeth (b. 1796, d. 1848)
- George (b. 1766, d. 1832)
- George (b. about 1819, d. 1894)
- Harold William (b. 1914, d. 2000)
- Ida Pearl (b. 1878)
- Jesse, Jr. (b. 1912, d. 1982)
- Jesse Dee (b. 1880, d. 1940)
- Jim (b. 1880, d. 1940)
- Johannes (b. 1789, d. 1853)
- Margaret (b. 1826)
- Mayme (b. 1881, d. 1969)
- Ralph Edward (b. 1917, d. 1980)
- Virginia Ann
- Keeler
- Keese
- Keith
- Keitlen
- Kell
- Keller
- Kellog
- Kelzenber
- Kelzenberg
- Adelheit (b. 1763, d. 1837)
- Anna Margaretha (b. 1765, d. 1840)
- Anna Margaretha (b. 1808)
- Anna Maria (b. 1768, d. before 1836)
- Anna Sibilla (b. 1770, d. 1831)
- Anna Sibilla (b. 1849, d. 1851)
- Anna Sibilla (b. 1857)
- Anna Sophia (b. 1853)
- Anne Sibille (b. 1806)
- Anton (b. 1866, d. 1867)
- Cecelia (b. 1852, d. 1924)
- Christian (b. 1775, d. 1836)
- Christian Hubet (b. 1868, d. 1958)
- Elisabeth (b. 1758, d. 1826)
- Elisabeth (b. 1818)
- Franz (b. 1823)
- Gertrud (b. 1855, d. 1930)
- Heinrich (b. 1861, d. 1861)
- Hermann Joseph (b. 1859)
- Jean (b. 1811)
- Johann (b. about 1740, d. 1798)
- Johann (b. about 1760)
- John (b. 1858, d. 1943)
- Maria Catharine (b. 1761, d. 1810)
- Maria Catherina (b. 1864)
- Mathias (b. 1757)
- Paul (b. 1862, d. 1863)
- Sibilla Catharina (b. 1825)
- Theodor (b. 1820, d. after 1885)
- Kemp
- Kenealy
- Kenigsberg
- Abram Moishe (b. 1893, d. 1962)
- Alter Pinkus (b. 1895)
- Bajla (b. 1870)
- Berek
- Brucha (b. about 1907)
- Feige Malke (b. 1903, d. 1987)
- Florence (b. 1903, d. 1987)
- Haja Estera (b. 1900)
- Henne Rifke (b. 1895)
- Josek (b. about 1870)
- Kalma (b. about 1893, d. 1902)
- Malka (b. 1897, d. about 1942)
- Mattis (b. 1902)
- Meite (b. 1872, d. 1911)
- Rywka (b. 1892, d. 1893)
- Rywka Golda (b. 1902)
- Sarah (b. 1911, d. 1982)
- Sarah (b. 1911, d. 1982)
- Shrage Feivel (b. 1873, d. 1907)
- Szlama Mendel (b. 1903)
- Szmul Mosziek (b. 1891)
- Kennedy
- Keshelman
- Kessel
- Kessler
- Kestenbaum
- Keyser
- Kherts
- Kidder
- Kiel
- Kiersz
- Kinch
- King
- Kingsbury
- Kingswood
- Kinne
- Kirby
- Kirn
- Kiselinsky
- Kitson
- Kivaschefsky
- Kiyindou
- Klaassens
- Klachook
- Klajn
- Klajner
- Klaynerman
- Kleid
- Klein
- Kleinberg
- Klenckh
- Hanß (b. about 1612, d. 1670)
- Kline
- Klingsmith
- Klir
- Klochendler
- Kloeck
- Klooger
- Kloosterman
- Klos
- Kluczkowski
- Klueger
- Kniffen
- Knop
- Knopp
- Knudson
- Kobielski
- Kobielsky
- Malka (b. 1844, d. 1921)
- Tauba (b. 1878, d. about 1942)
- Koblitz
- Bertha (b. about 1850, d. 1906)
- Britha (b. about 1850, d. 1906)
- Kobrick
- Ray (b. about 1889, d. 1968)
- Koch
- Kocksberg
- Kocurek
- Koèerová
- Koekoek
- Gerrit (b. about 1822, d. 1907)
- Koenen
- Kofman
- Kogan
- Kohn
- Kojfer
- Kolář
- Kolářová
- Kollman
- Kolmanowitz
- Kondelka
- John (b. 1829, d. 1910)
- Marie (b. 1857, d. 1936)
- Konigsberg
- Konke
- Koopmans
- Kopel
- Koplewicz
- Köppen
- Korman
- Kornetz
- Kortanekova
- Barbara (b. about 1818, d. (between 1885 & 1900))
- Kosiroff
- Kostohryz
- Kostohyrz
- Koudelka
- Kovacs