•
Amanda Jay Mortimer (born 1944), American urban planner and consultant •
Angela Mortimer (1932–2025), British tennis player •
Bob Mortimer (born 1959), English comedian and actor •
Carole Mortimer (born 1960), English romance novelist •
Chris Mortimer (born 1958), Australian rugby league footballer •
Christopher Mortimer (born 1984) Rhode Island non-socialite •
Conor Mortimer (born 1982), Irish Gaelic football player •
Daniel Mortimer (born 1989), Australian rugby league footballer •
Debra Mortimer, Australian judge •
Edmund Mortimer (actor) (1874–1944), American actor and film director •
Edward A. Mortimer Jr. (1922–2002), American pediatrician, epidemiologist, and public health educator •
Emily Mortimer (born 1971), English actress •
Favell Lee Mortimer (1802–1878), English Evangelical author of educational books for children •
Frank Mortimer (1932–2009), English rugby league footballer who played in the 1950s and 1960s •
Gary Mortimer (born 1967), English aeronaut •
George Ferris Whidborne Mortimer (1805–1871), English schoolmaster and divine •
Ian Mortimer (born 1983), Canadian sprint canoeist •
Ian Mortimer (historian) (born 1967), British writer •
James Mortimer (1833–1911), American chess player, journalist and playwright •
James Mortimer (hurdler) (born 1983), New Zealand hurdler •
Jill Mortimer (born 1965), British Conservative politician, former MP for Hartlepool (2021–2024) •
John Mortimer (c. 1656 – 1736), English agriculturalist •
John Mortimer (1923–2009), British barrister, dramatist, screenwriter and author •
John B. Mortimer, Hong Kong judge •
John Hamilton Mortimer (1740–1779), British painter •
John Robert Mortimer (1825–1911), Yorkshire corn merchant and archaeologist •
Kenneth Mortimer, President Emeritus of Western Washington University, eleventh president of the University of Hawai`i system and Chancellor of the University of Hawai`i at Manoa 1993–2001 •
Maddie Mortimer (born 1996), British writer •
Mary Mortimer (1816–1877), British-born American educator •
Minnie Mortimer (born 1980), American fashion designer and socialite •
Myra Mortimer (1894–1972), American contralto •
Richard Mortimer (1852–1918), American real estate investor and society leader •
Roger Mortimer (racing) (1909–1991), British horse-racing correspondent •
Steve Mortimer (born 1956), Australian rugby league footballer •
Thomas Mortimer (1730–1810), English writer in the field of economics •
Tinsley Mortimer (born 1976), American socialite •
Tony Mortimer (born 1970), British songwriter, composer, singer and rapper; member of British 1990s pop group East 17 == Fictional characters ==