The most ancient origin of the surname Keller is Irish and comes from the Anglicized version of the Old Gaelic surname Ó Céilechair (meaning descendant of Céilechair) in the 11th century AD. Céilechair was descended from Cennétig mac Lorcáin King of the Dál gCais in modern-day Clare, which was at that time the Gaelic Kingdom of Thomond. Cennétig mac Lorcáin was the ancestor and progenitor of the Keller family, and also of the Kennedys and O'Briens of Munster.
The Anglicized surname in Ireland has many different spellings including: O'Kelleher, Kelaher, Kelliher, Kellar, Keller, McKeller, MacKeller, and O'Keller.
The meaning of Ceileachair in Gaelic Irish is 'companionable' or 'uxorious.'
The surname In German means cellar or basement. A Latinized form of "Keller" is "Cellarius".
People whose surname is or was Keller include:
Adam Keller, Israeli peace activistAl Keller, American race car driverAlbert Keller (1844–1920), German painterAlbert Galloway Keller (1874–1956), American sociologist and authorAmanda Keller (b. 1962), Australian TV personalityAndreas Keller (b. 1965), German field hockey playerArthur I. Keller (1867–1924), American illustratorAugustin Keller (1805–1883), Swiss politicianBernhard Keller (born 1964), Swiss mathematicianBill Keller (b. 1949), American editorCarlos Keller, Chilean academic and politician.Carsten Keller, German field hockey playerChaim Dov Keller, rabbi and rosh yeshiva in ChicagoCharlie Keller, US baseball playerChris Keller, a fictional character in the Arthur Miller Play All My SonsChristopher Keller, a fictional character in the American television series OzDavid H. Keller (1880–1966), American science fiction writerDonald G. Keller (born 1951), American science fiction and fantasy editor and criticÉmile Keller (1828–1909), French writer and politicianErhard Keller (born 1944), German ice skaterErwin Keller, German field hockey playerEvelyn Fox Keller, American scientistFerdinand Keller (disambiguation), several peopleFranz Keller (psychologist), (1913 - 1991), was a Swiss psychologist, Christian pacifist and left-wing news editor.Franz Keller, (1945- ), a West German Nordic combined skier.Fred S. Keller (1899 - 1996), American pioneer in experimental psychologyFriedrich Ludwig Keller (1799–1860), German-Swiss juristFriedrich von Keller (painter) (1840–1914), German landscape painterFriedrich von Keller (diplomat) (1873–1960), German diplomat (father of Rupprecht)Fyodor Keller, Russian generalGeorge Keller (academic) (1928–2007), American scholar and academic administratorGeorge Keller (architect) (1842–1935), Irish-born American architect and engineerGerta Keller (born 1945), American paleontologistGottfried Keller (1819–1890), Swiss writerHannes Keller, Swiss physicist and mathematicianHans Keller, (1919–1985), Austrian-born British musician and writerHans Peter Keller (1915–1988), German poetHelen Keller, American blind and deaf author and activistHubert Keller a French chef"Gentleman" Jack Keller (poker player) (d. 2003), poker playerJack Keller (comics) (1922–2003), comic book artistJack Keller (athlete) former World Record Holder 110 hurdles set July 1932Jack Keller (songwriter) (1936–2005)Jacob Keller (1568–1631)James Keller (1900-1977) Irish-American Priest in the Maryknoll Order.Jan Keller (born 1955), Moravian sociologist, environmentalist and politicianJason Keller (born 1970), NASCAR racing driverJennifer Keller fictional M.D. on the SciFi TV Series Stargate AtlantisJerry Keller (musician)Jim Keller (musician)Johann Baptist von Keller (1774–1845), German bishopJoseph B. Keller (1923–2016), American mathematicianKasey Keller, (born 1969), a US former soccer playerK.T. Keller, president and chairman of Chrysler Corporation, and Defence Department "missile czar" in 1950sLouis Keller, assembled and published the New York Social Register.Markus Keller (born 1967), Swiss triathleteMarthe Keller (born 1945)Matthew Keller (born 1810) Irish-born, American agriculturalist, vintner, and distiller.Nuh Ha Mim Keller, Muslim scholar (alim), legal expert and jurist (faqih), translator of classical Arabic texts (Reliance of the Traveller), and Mystic of the Shadhili order of SufisOtt-Heinrich Keller, mathematicianOtto Keller (footballer)Otto Keller (philologist), German classical philologistPeter G. Keller (1894–1972), a New York stamp dealerPius Keller (1825–1904)Ric KellerRobert Keller (1828–1891), German music editorRod Keller (1900–1954), Canadian generalRupprecht von Keller (1910–2003), German lawyer and diplomat (son of Friedrich)Sharon Keller (born 1953) controversial Texas Criminal Court of Appeals JudgeThomas Keller, award-winning American chefTimothy J. Keller, pastor of Redeemer Presbyterian Church in New York CityWade Keller, editor-in-chief of Pro Wrestling Torch newsletter and websiteWalter KellerWes Keller (born 1946), member of the Alaska House of RepresentativesWilliam Keller (disambiguation)