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 activist
Al Keller, American race car driver
Albert Keller (1844–1920), German painter
Albert Galloway Keller (1874–1956), American sociologist and author
Amanda Keller (b. 1962), Australian TV personality
Andreas Keller (b. 1965), German field hockey player
Arthur I. Keller (1867–1924), American illustrator
Augustin Keller (1805–1883), Swiss politician
Bernhard Keller (born 1964), Swiss mathematician
Bill Keller (b. 1949), American editor
Carlos Keller, Chilean academic and politician.
Carsten Keller, German field hockey player
Chaim Dov Keller, rabbi and rosh yeshiva in Chicago
Charlie Keller, US baseball player
Chris Keller, a fictional character in the Arthur Miller Play All My Sons
Christopher Keller, a fictional character in the American television series Oz
David H. Keller (1880–1966), American science fiction writer
Donald G. Keller (born 1951), American science fiction and fantasy editor and critic
Émile Keller (1828–1909), French writer and politician
Erhard Keller (born 1944), German ice skater
Erwin Keller, German field hockey player
Evelyn Fox Keller, American scientist
Ferdinand Keller (disambiguation), several people
Franz 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 psychology
Friedrich Ludwig Keller (1799–1860), German-Swiss jurist
Friedrich von Keller (painter) (1840–1914), German landscape painter
Friedrich von Keller (diplomat) (1873–1960), German diplomat (father of Rupprecht)
Fyodor Keller, Russian general
George Keller (academic) (1928–2007), American scholar and academic administrator
George Keller (architect) (1842–1935), Irish-born American architect and engineer
Gerta Keller (born 1945), American paleontologist
Gottfried Keller (1819–1890), Swiss writer
Hannes Keller, Swiss physicist and mathematician
Hans Keller, (1919–1985), Austrian-born British musician and writer
Hans Peter Keller (1915–1988), German poet
Helen Keller, American blind and deaf author and activist
Hubert Keller a French chef
"Gentleman" Jack Keller (poker player) (d. 2003), poker player
Jack Keller (comics) (1922–2003), comic book artist
Jack Keller (athlete) former World Record Holder 110 hurdles set July 1932
Jack 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 politician
Jason Keller (born 1970), NASCAR racing driver
Jennifer Keller fictional M.D. on the SciFi TV Series Stargate Atlantis
Jerry Keller (musician)
Jim Keller (musician)
Johann Baptist von Keller (1774–1845), German bishop
Joseph B. Keller (1923–2016), American mathematician
Kasey Keller, (born 1969), a US former soccer player
K.T. Keller, president and chairman of Chrysler Corporation, and Defence Department "missile czar" in 1950s
Louis Keller, assembled and published the New York Social Register.
Markus Keller (born 1967), Swiss triathlete
Marthe 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 Sufis
Ott-Heinrich Keller, mathematician
Otto Keller (footballer)
Otto Keller (philologist), German classical philologist
Peter G. Keller (1894–1972), a New York stamp dealer
Pius Keller (1825–1904)
Ric Keller
Robert Keller (1828–1891), German music editor
Rod Keller (1900–1954), Canadian general
Rupprecht von Keller (1910–2003), German lawyer and diplomat (son of Friedrich)
Sharon Keller (born 1953) controversial Texas Criminal Court of Appeals Judge
Thomas Keller, award-winning American chef
Timothy J. Keller, pastor of Redeemer Presbyterian Church in New York City
Wade Keller, editor-in-chief of Pro Wrestling Torch newsletter and website
Walter Keller
Wes Keller (born 1946), member of the Alaska House of Representatives
William Keller (disambiguation)
