| Ben Jonson (1572–1637), English dramatist |
| Joos van Gent (fl. 1460–1480), Flemish painter |
| Jacob Jordaens (1593–1678), Flemish painter |
| Camille Jordan (1771–1821), French politician |
| David Starr Jordan (1851–1931), American naturalist and educator |
| Dorothea Jordan (1761–1816), Irish actress |
| Thomas Jordan (1612?–1685?), English poet and pamphleteer |
| Wilhelm Jordan (1819–1904), German poet and novelist |
| Jordanes (fl. Sixth Century), historian of the Gothic nation |
| Jordanus Catalani (fl. 1321–1330), French Dominican missionary and explorer in Asia |
| David Joris (1501/2–1556), Anabaptist heresiarch |
| John Jortin (1698–1770), English theologian |
| Joseph, in the Old Testament, the son of the patriarch Jacob |
| Joseph, in the New Testament, the husband of Mary |
| Joseph of Arimathaea, in the New Testament, a wealthy Jew |
| Joseph I. (1678–1711), Roman Emperor |
| Joseph II. (1741–1790), Roman Emperor |
| Joseph ben Gorion, reputed author of the chronicle Josippon |
| Josephine (1763–1814), Empress of the French |
| Josephus (37–100), Jewish historian and military commander |
| Joshua, sixth book of the Old Testament |
| Joshua the Stylite, reputed author of a chronicle |
| Josiah, in the Bible, King of Judah |
| Miklós Jósika (1796?–1865), Hungarian novelist |
| Josquin des Prez (d. 1521), French musical composer |
| John Josselyn (fl. 1630–1675), English traveler |
| Isaak Markus Jost (1793–1860), Jewish historical writer |
| Barthélemy Catherine Joubert (1769–1799), French general |
| Joseph Joubert (1754–1824), French moralist |
| Petrus Jacobus Joubert (1831–1900), Commandant-general of the South African Republic |
| Jean Jouffroy (c. 1412–1473), French prelate and diplomatist |
| Théodore Jouffroy (1796–1842), French philosopher |
| James Prescott Joule (1818–1889), English physicist |
| Jean-Baptiste, Count Jourdan (1762–1833), Marshal of France |
| Jean Jouvenet (1644–1717), French painter |
| Étienne de Jouy (1764–1846), French dramatist |
| Gaspar de Jovellanos (1744–1811), Spanish statesman and author |
| Jovian (c. 331–364), Roman Emperor |
| Jovinianus (fl. 385–400), Roman monk of heterodox views |
| Benjamin Jowett (1817–1893), English scholar and theologian |
| Joyeuse |
| Don Juan Manuel (1282–1347?), Infante of Castile |
| Juana la Loca (1479–1555), Queen of Castile |
| Benito Juárez (1806–1872), President of Mexico |
| Juba, name of two kings of Numidia |
| Leo Jud (1482–1542), Swiss reformer |
| Judas Iscariot, one of the Twelve Apostles |
| Sylvester Judd (1813–1853), American Unitarian clergyman and author |
| Judith, one of the apocryphal books of the Old Testament |
| Adoniram Judson (1788–1850), American missionary |
| Jens Juel (1631–1700), Danish statesman |
| Niels Juel (1629–1697), Danish admiral |
| Boffille de Juge (d. 1502), French-Italian adventurer and statesman |
| Jugurtha (c. 160–104 B.C.), King of Numidia |
| Joseph Beete Jukes (1811–1869), English geologist |
| Julian (331–363), called the Apostate, Roman Emperor |
| Stanislas Julien (1797?–1873), French orientalist |
| Julius, name of three popes |
| Louis Antoine Jullien (1812–1860), musical conductor |
| Sir Jung Bahadur (1816–1877), Maharajah, Prime Minister of Nepal |
| Johann Heinrich Jung-Stilling (1740–1817), German author |
| Junius, Pseudonym of a writer of a series of letters |
| Franciscus Junius, name of two Huguenot scholars |
| Wilhelm Junker (1840–1892), German explorer of Africa |
| Jean Andoche Junot, duc d’Abrantès (1771–1813), French general |
| Laure Junot, Duchess of Abrantès (1783–1834), wife of the preceding |
| Jean Pierre Edmond Jurien de La Gravière (1812–1892), French admiral |
| Pierre Jurieu (1637–1713), French Protestant divine |
| Jurjānī, name of two Arabic scholars |
| Jean Jules Jusserand (1855–1932), French author and diplomatist |
| de Jussieu, name of a French family |
| Théodore Juste (1818–1888), Belgian historian |
| Justin, Roman historian |
| Justin I. (c. 450–527), East Roman Emperor |
| Justin II. (d. 578), East Roman Emperor |
| Justinian I. (483?–565), surnamed the Great, most famous of all the emperors of the Eastern Roman Empire |
| Justinian II. (669–711), East Roman Emperor |
| Justin Martyr (c. 100–c. 167), Justin Martyr, one of the earliest and ablest Christian apologists |
| Juvenal (c. 55–127), Roman poet and satirist |
| Caius Vettius Aquilinus Juvencus (fl. Fourth Century), Christian poet |
| William Juxon (1582–1663), English prelate |
| Kabīr (Fifteenth Century), most notable of the Vaishnava reformers of religion in northern India |
| Engelbert Kaempfer (1651–1716), German traveller and physician |
| Gustave Kahn (1859–1936), French poet |
| Otto Hermann Kahn (1867–1934), American financier |
| Karl Friedrich August Kahnis (1814–1888), German Lutheran theologian |
| Gustav von Kahr (1862–1934), Bavarian Minister-President |
| David Kalakaua (1836–1891), King of the Sandwich or Hawaiian Islands |
| Friedrich Adolf, Count von Kalckreuth (1737–1818), Prussian soldier |
| Leopold von Kalckreuth (1855–1928), German painter |
| Alexei Maksimovich Kaledin (1861–1918), Russian general |
| Kālidāsa (c. Fourth Century), most illustrious name among the writers of the second epoch of Sanskrit literature |
| Isidor Kalisch (1816–1886), Jewish divine |
| Marcus Moritz Kalisch (1825–1885), Jewish scholar |
| Friedrich Wilhelm Michael Kalkbrenner (1785–1849), German pianist and composer |
| Béni Kállay (1839–1903), Austro-Hungarian statesman |
| Demetrios Kallergis (1803–1867), Greek statesman |
| Eleazar Kallir, Hebrew liturgical poet |
| Gustav Kálnoky (1832–1898), Austro-Hungarian statesman |
| Kamehameha I. (d. 1819), the conqueror and first King of the entire group of the Hawaiian Islands |
| Kamehameha II. (1797–1824), son of the preceding |
| Kamehameha III. (1814–1854), brother of the preceding |
| Kamehameha IV. (1834–1863), nephew of the preceding |
| Kamehameha V. (1830–1872), Elder brother of the preceding |
| Heike Kamerlingh Onnes (1853–1926), Dutch physicist |
| Henry Home, Lord Kames (1696–1782), Scottish lawyer and philosopher |
| Constantine Kanaris (1793–1877), Greek patriot |
| Elisha Kent Kane (1820–1857), American scientist and explorer |
| Kanishka (Second Century A.D.), King of Kabul, Kashmir, and northwestern India |
| Immanuel Kant (1724–1804), German philosopher |
| Inoue Kaoru (1835–1915), Japanese statesman |
| Friedrich Kapp (1824–1884), German author |
| Wolfgang Kapp (1858–1922), German conspirator |
| Karađorđe (1768?–1817), leader of the Servians |
| Vuk Karadžić (1787–1864), father of modern Servian literature |
| Georges Karaiskakis (1782–1827), leader in the War of Greek Independence |
| Kara Mustafa (1634–1683), Turkish vizier |
| Nikolai Mikhailovich Karamzin (1766–1826), Russian historian, critic, novelist and poet |
| Andreas Rudolff-Bodenstein von Karlstadt (1486–1541), German reformer |
| József Kármán (1769–1795), Hungarian author |
| Joseph ben Ephraim Karo (1488–1575), Codifier of Jewish law |
| Mihály Károlyi (1875–1955), Hungarian politician |
| Alphonse Karr (1808–1890), French critic and novelist |
| Felix Karrer (1825–1903), Austrian geologist |
| Carl Johann Bernhard Karsten (1782–1853), German mineralogist |
| Jan Jacob Lodewijk ten Kate (1819–1889), Dutch divine, prose writer and poet |
| Henry Kater (1777–1835), English physicist |
| Katherine of Lancaster (1350?–1403), wife of John of Gaunt |
| Kâtip Çelebi (1609–1657), Arabic and Turkish author |
| Mikhail Nikiforovich Katkov (1818–1887), Russian journalist |
| Takaaki Kato (1860–1926), Japanese statesman |
| Tarō Katsura (1847–1913), Japanese soldier and statesman |
| Angelica Kauffmann (1741–1807), Once popular artist and Royal Academician |
| Constantine Petrovich Kaufmann (1818–1882), Russian general |
| Wilhelm von Kaulbach (1805–1874), German painter |
| Wenzel Anton von Kaunitz-Rietburg (1711–1794), Austrian chancellor and diplomatist |
| Johann Jakob Kaup (1803–1873), German naturalist |
| Kavādh I. (d. 531), King of the Sassanid dynasty |
| Arthur Macmorrough Kavanagh (1831–1889), Irish politician |
| Julia Kavanagh (1824–1877), British novelist |
| John Kay (1742–1826), Scottish caricaturist |
| Joseph Kay (1821–1878), English economist |
| Sir John William Kaye (1814–1876), English military historian |
| Emanuel Kayser (1845–1927), German geologist and palæontologist |
| Sir James Kay-Shuttleworth (1804–1877), English politician and educationalist |
| Ferencz Kazinczy (1759–1831), Hungarian author |
| Edmund Kean (1787–1833), English actor |
| Augustus Henry Keane (1833–1912), Irish anthropologist |
| John Joseph Keane (1839–1918), American Roman Catholic Archbishop |
| Philip Kearny (1815–1862), American soldier |
| Annie Keary (1825–1879), English novelist |
| Charles Francis Keary (1848–1917), English author |
| John Keate (1773–1852), English schoolmaster |
| John Keats (1795–1821), English poet |
| John Keble (1792–1866), English poet and divine, the author of the Christian Year |
| Mary Anne Keeley (1806–1899), English actress |
| Charles Keene (1823–1891), English black-and-white artist |
| Laura Keene (1826–1873), Anglo-American actress and manager |
| Robert Porter Keep (1844–1904), American scholar |
| Theodor Keim (1825–1878), German Protestant theologian |
| Keith, name of an old Scottish family |
| Francis Edward James Keith (1696–1758), Scottish soldier and Prussian field marshal |
| George Keith (c. 1639–1716), British divine |
| August Kekulé (1829–1896), German chemist |
| Albert von Keller (1844–1920), German painter |
| Gottfried Keller (1819–1890), German poet and novelist |
| Helen Keller (1880–1968), American blind deaf-mute |
| François-Christophe de Kellermann (1735–1820), Duke of Valmy and marshal of France |
| Johan Henrik Kellgren (1751–1795), Swedish poet and critic |
| Clara Louise Kellogg (1842–1916), American singer |
| Day Otis Kellogg (b. 1837), American littérateur |
| Kelly, Baron Fitzroy (1796–1880), English judge |
| Hugh Kelly (1739–1777), Irish dramatist and poet |
| Michael Kelly (1762–1826), British actor, singer and composer |
| Ned Kelly (1855–1880), Australian bushranger |
| Sir John Scott Keltie (1840–1927), British geographer |
| William Thomson, Lord Kelvin (1824–1907), British physicist |
| Kemble, name of a family of English actors |
| John Mitchell Kemble (1807–1857), English scholar and historian |
| Zsigmond Kemény (1814–1875), Hungarian author |
| William Kemp (fl. 1600), English actor and dancer |
| John Kempe (c. 1380–1454), English Cardinal, Archbishop of Canterbury, and chancellor |
| Richard Kempenfelt (1718–1782), British rear-admiral |
| Sir James Kempt (1764–1854), British soldier |
| Thomas Ken (1637–1711), most eminent of the English non-juring Bishops, and one of the fathers of modern English hymnology |
| Dukedom of Kendal |
| William Hunter Kendal (1843–1917), English actor |
| Amos Kendall (1789–1869), American statesman |
| Henry Kendall (1839–1882), Australian poet |
| Edward Vaughan Hyde Kenealy (1819–1880), Irish barrister and author |
| William Gordon, Viscount Kenmure (d. 1716), Jacobite leader |
| George Kennan (1845–1924), American traveler and author |
| Kennedy, name of a famous and powerful Scottish family |
| Benjamin Hall Kennedy (1804–1889), English scholar |
| Sir James Shaw Kennedy (1788–1865), British soldier and military writer |
| John Pendleton Kennedy (1795–1870), American author and statesman |
| Thomas Francis Kennedy (1788–1879), Scottish politician |
| Walter Kennedy (c. 1460–c. 1508), Scottish poet |
| Kenneth, name of two kings of the Scots |
| White Kennett (1660–1728), English Bishop and antiquary |
| Adolph Kenngott (1818–1897), German mineralogist |
| Benjamin Kennicott (1718–1783), English divine and Hebrew scholar |
| James Kenny (1780–1849), English dramatist |
| William Kenrick (1725?–1779), author of considerable ability |
| John Frederick Kensett (1816–1872), American artist |
| Earls and Dukes of Kent |
| James Kent (1763–1847), American jurist |
| William Kent (1685–1748), English “painter, architect, and the father of modern gardening” |
| William Charles Mark Kent (1823–1902), English editor |
| Saint Kentigern (d. c. 612), Briton of Strathclyde |
| Simon Kenton (1755–1836), American pioneer |
| Frederic George Kenyon (1863–1952), English classical scholar and librarian |
| Lloyd, Baron Kenyon (1732–1802), Lord chief-justice of England |
| Keokuk (d. 1848), Chief of the Sacs and Foxes |
| Johannes Kepler (1571–1630), German astronomer |
| Augustus, Viscount Keppel (1725–1786), British admiral |
| Sir Henry Keppel (1809–1904), British admiral |
| John Ker (1673–1726), Scottish spy |
| William Paton Ker (1855–1923), British man of letters |
| Auguste Hilarion Kératry (1769–1859), French writer and politician |
| Aleksandr Fyodorovich Kerensky (1881–1970), Russian politician |
| Hendrik Kern (1833–1917), Dutch orientalist |
| Jacques Conrad Kern (1808–1888), Swiss statesman |
| Justinus Andreas Christian Kerner (1786–1862), German poet and medical writer |
| Louise-Renée de Kéroualle, Duchess of Portsmouth and Aubigny (1649–1734), mistress of the English King Charles II. |
| Armand-Guy Kersaint (1742–1793), French sailor and politician |
| Joseph Brevard Kershaw (1822–1894), American soldier |
| Joseph Kervyn de Lettenhove (1817–1891), Belgian historian |
| John Ketch (d. 1686), English executioner |
| Robert Kett (d. 1549), English rebel |
| Wilhelm Emmanuel, Freiherr von Ketteler (1811–1877), German theologian and politician |
| Sir Rupert Alfred Kettle (1817–1894), English county court judge |
| Sir Astley Cooper Key (1821–1888), English admiral |
| Francis Scott Key (1779–1843), American poet |
| Thomas Hewitt Key (1799–1875), English classical scholar |
| Erasmus Darwin Keyes (1810–1895), American soldier |
| Thomas de Keyser (1596–1667), Dutch painter |
| Khaireddin (d. 1890), Turkish statesman |
| The Khalifa (1846–1899), successor of the mahdī Mahommed Ahmed |
| Khālid ibn al-Walīd (d. 642), Moslem general |
| Khalīl ibn Aḥmad (718?–786?), Arabian philologist |
| Khansā’ (d. c. 645), Arabian poetess |
| Omar Khayyám (1048–1131), the great Persian mathematician, astronomer, freethinker and epigrammatist |
| Ludwig Andreas Khevenhüller (1683–1744), Austrian field-marshal |
| Fernand Khnopff (1858–1921), Belgian painter and etcher |
| Kiamil Pasha (1833–1913), Turkish statesman |
| Benjamin Kidd (1858–1916), British sociologist |
| John Kidd (1775–1851), English physician, chemist and geologist |
| Thomas Kidd (1770–1850), English classical scholar and schoolmaster |
| William Kidd (c. 1645–1701), Privateer and pirate |
| Alfred von Kiderlen-Wächter (1852–1912), German diplomatist |
| Takayoshi Kido (1833–1877), Japanese statesman |
| Alexander Lange Kielland (1849–1906), Norwegian novelist |
| Heinrich Kiepert (1818–1899), German geographer |
| Richard Kiepert (1846–1915), German cartographer |
| Søren Kierkegaard (1813–1855), Danish philosopher |
| Thomas Fitzgerald, Earl of Kildare (1513–1537), Irish noble |
| Alexander Kilham (1762–1798), English Methodist |
| Saint Kilian (fl. Seventh Century?), British missionary Bishop and the apostle of eastern Franconia |
| William Dool Killen (1806–1902), Irish educator and writer |
| Sir Henry Killigrew (c. 1525–1603), English diplomatist |
| Thomas Killigrew (1612–1683), English dramatist and wit |
| Charles Edward Kilmaine (1751–1799), French general |
| Robert Kilwardby (d. 1279), Archbishop of Canterbury and Cardinal |
| Richard Burleigh Kimball (1816–1892), American author |
| John Wodehouse, Earl of Kimberley (1826–1902), English statesman |
| Ḳimḥi, family name of three Jewish grammarians and biblical scholars |
| Kindī (d. c. 873), sometimes called preeminently “The Philosopher of the Arabs” |
| Charles King (1844–1933), American soldier and author |
| Charles William King (1818–1888), English writer on ancient gems |
| Clarence King (1842–1901), American geologist |
| Edward King (1612–1637), subject of Milton’s Lycidas |
| Edward King (1829–1910), English Bishop |
| Henry King (1592–1669), English Bishop and poet |
| Leonard William King (1869–1919), English archæologist |
| Peter, Lord King (1669–1734), Lord Chancellor of England |
| Rufus King (1755–1827), American political leader |
| Thomas King (1730–1805), English actor and dramatist |
| Thomas Starr King (1824–1864), American clergyman |
| William King (1650–1729), Anglican divine |
| William King (1663–1712), English poet and miscellaneous writer |
| William Rufus King (1786–1853), American statesman |
| Alexander William Kinglake (1809–1891), English historian and traveller |
| Edward King, Viscount Kingsborough (1795–1837), Irish statesman and author |
| Sir John Hay Athole Macdonald, Lord Kingsburgh (1836–1919), British lawyer and judge |
| Thomas Pemberton-Leigh, Baron Kingsdown (1793–1867), English noble |
| William Kingsford (1819–1898), British engineer and Canadian historian |
| Charles Kingsley (1819–1875), English clergyman, poet and novelist |
| Henry Kingsley (1830–1876), English novelist |
| Mary Henrietta Kingsley (1862–1900), English traveller, ethnologist and author |
| William Henry Giles Kingston (1814–1880), English novelist |
| Earls and Dukes of Kingston-upon-Hull |
| Gottfried Kinkel (1815–1882), German poet |
| Rudyard Kipling (1865–1936), British author |
| Andrew Kippis (1725–1795), English nonconformist divine and biographer |
| William Kirby (1759–1850), English entomologist |
| Athanasius Kircher (1602–1680), German scholar and mathematician |
| Adolf Kirchhoff (1826–1908), German classical scholar and epigraphist |
| Gustav Kirchhoff (1824–1887), German physicist |
| Sir John Kirk (1832–1922), British naturalist and administrator |
| John Foster Kirk (1824–1904), American historian |
| John Kirkby (d. 1290), English ecclesiastic and statesman |
| Sir William Kirkcaldy of Grange (c. 1520–1573), Scottish politician |
| Sir David Kirke (c. 1597–1654), English adventurer |
| Percy Kirke (c. 1646–1691), English soldier |
| Caroline Matilda Stansbury Kirkland (1801–1864), American author |
| Joseph Kirkland (1830–1894), American author |
| Samuel Kirkland (1741–1808), American clergyman |
| Samuel Jordan Kirkwood (1813–1894), American statesman |
| Richard Kirwan (1733–1812), Irish scientist |
| Károly Kisfaludy (1788–1830), Hungarian author |
| Shibasaburō Kitazato (1856–1931), Japanese doctor of medicine |
| Horatio Herbert, Earl Kitchener (1850–1916), British field-marshal |
| John Kitto (1804–1854), English biblical scholar |
| Halfdan Kjerulf (1815–1868), Norwegian musical composer |
| Theodor Kjerulf (1825–1888), Norwegian geologist |
| Julian Klaczko (1828–1906), Jewish author |
| Katharina Klafsky (1855–1896), Hungarian operatic singer |
| Johann Klaj (1616?–1656), German poet |
| György Klapka (1820–1892), Hungarian soldier |
| Julius von Klaproth (1783–1835), German orientalist and traveller |
| Martin Heinrich Klaproth (1743–1817), German chemist |
| Jean-Baptiste Kléber (1753–1800), French general |
| Edwin Klebs (1834–1913), German physician and educator |
| Julius Leopold Klein (1810–1876), German writer of Jewish origin |
| Ewald Christian von Kleist (1715–1759), German poet |
| Heinrich von Kleist (1777–1811), German poet, dramatist and novelist |
| Melchior Klesl (1552–1630), Austrian statesman and ecclesiastic |
| Václav Kliment Klicpera (1792–1859), Bohemian playwright |
| Friedrich Maximilian von Klinger (1752–1831), German dramatist and novelist |
| Max Klinger (1857–1920), German painter, etcher and sculptor |
| Onno Klopp (1822–1903), German historian |
| Friedrich Gottlieb Klopstock (1724–1803), German poet |
| Reinhold Klotz (1807–1870), German classical scholar |
| Samuel Lorenzo Knapp (1783–1838), American author |
| Ludwig Knaus (1829–1910), German genre painter |
| Karl Ludwig von Knebel (1744–1834), German poet and translator |
| Samuel Kneeland (1821–1888), American naturalist and educator |
| Sir Godfrey Kneller (1646–1723), Portrait painter |
| Harmen Jansen Knickerbocker (c. 1650–c. 1720), Dutch colonist of New Netherland (New York) |
| Adolf, Freiherr von Knigge (1752–1796), German author |
| Charles Knight (1791–1873), English publisher and author |
| Daniel Ridgway Knight (1845–1924), American artist |
| John Buxton Knight (1843–1908), English landscape painter |
| Richard Payne Knight (1751–1824), English antiquarian and author |
| William Angus Knight (1836–1916), Scotch philosopher and educator |
| Bernt Knipperdollinck (c. 1490–1536), German divine |
| Richard Knolles (c. 1550–1610), English historian |
| Sir Robert Knolles (c. 1325–1407), English soldier |
| Knollys, name of an English family |
| Sir James Knowles (1831–1908), English architect and editor |
| James Sheridan Knowles (1784–1862), Irish dramatist and actor
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