Fitzhugh is an English Anglo-Norman surname originating in Northamptonshire and Bedfordshire.^[2] It is patronymic as the prefix Fitz- derives from the Latin filius, meaning "son of". Its variants include FitzHugh, Fitz-Hugh, Fitz Hugh, fitz Hugh, and its associated given name turned surname Hugh. Fitzhugh is rare as a given name.^{[citation needed]}

A family with the surname of Fitzhugh were proven descendants of Acaris, son of Bardolf, a son of Odo, Count of Penthièvre who was a close relative and important ally of William the Conqueror.^[3]

People with the name Fitzhugh include:

• Alice FitzHugh (c. 1448–1516), English noblewoman
• Ann Carroll Fitzhugh (1805–1875), American abolitionist
• Bruce Fitzhugh, American musician
• Charles Lane Fitzhugh (1838–1923), American military officer
• Courtney Fitzhugh, American hematologist-oncologist and scientist
• Craig Fitzhugh (born 1950), American politician
• Elisabeth West FitzHugh (1926–2017), Lebanese American art conservation scientist
• Elizabeth FitzHugh (1455/65–1507), English noblewoman
• Ellen Fitzhugh, (1942–2023), American musical theater lyricist
• Eugene Fitzhugh (1926–2007), American lawyer and businessman
• Everett Fitzhugh (born 1989), American sportscaster
• Francis C. FitzHugh (1928–1984), American Anglo-Catholic priest
• George Fitzhugh (priest) (died 1505), chancellor of Cambridge University and Dean of Lincoln
• George Fitzhugh (1806–1881), American social theorist
• Gilbert W. Fitzhugh (1911–1997), American actuary and businessman
• H. Naylor Fitzhugh (1909–1992), American academic
• Henry FitzHugh, 3rd Baron FitzHugh (c. 1358–1425)
• Henry Fitzhugh (sheriff) (1686–1758), American planter
• Henry Fitzhugh (burgess) (1706–1742), American planter and soldier
• Henry Fitzhugh (assemblyman) (1801–1866), New York politician
• John FitzHugh (c. 1180–1220), English royal counsellor
• Keith Fitzhugh (born 1986), American football player
• Kirk J. Fitzhugh (born 1957), American museum curator
• Kristine Fitzhugh (1947–2000) American murder victim
• Lorraine Fitzhugh (born 1963), American soccer player
• Louise Fitzhugh (1928–1974), American author
• Nicholas Battalle Fitzhugh (1764–1814), American politician and judge
• Percy Keese Fitzhugh (1876–1950), American author
• Robert FitzHugh (died 1436), Bishop of London
• Samuel Fitzhugh, African-American politician
• Steve Fitzhugh (born 1963), American football player
• Terrick V. H. FitzHugh (1907–1990), English film producer and genealogist
• Thornton Fitzhugh (1864–1933), American architect
• Valerie A. Fitzhugh, American pathologist
• William FitzHugh, 4th Baron FitzHugh (c. 1399–1452)
• William Fitzhugh (1741–1809), American politician and planter
• William F. Fitzhugh (1818–1883), American Confederate soldier and Texas Ranger
• William H. Fitzhugh (1792–1830), son of the above and also an American politician
• William W. Fitzhugh (born 1943), American archaeologist and anthropologist

• Fitzhugh Andrews (1873–1961), American teacher and composer
• Fitzhugh Dodson (1923–1993), American clinical psychologist, lecturer, educator and author
• Fitzhugh L. Fulton (1925–2015), American pilot
• Fitzhugh Green Sr. (1888–1947), American arctic explorer
• Fitzhugh Green Jr. (1917–1990), American businessman
• Fitz Houston (born 1953), American actor, musician, author and pastor
• Fitzhugh Lee (1835–1905), American military officer, politician, and diplomat
• Fitzhugh Lee III (1905–1992), American admiral, grandson of Fitzhugh Lee
• Fitz Hugh Ludlow (1836–1870), American author, journalist, and explorer
• Fitzhugh Mullan (1942–2019), American physician, writer, educator, and social activist
• Fitzhugh Townsend (1872–1906), American fencer

• "Fitzhugh Genealogy", website about the history and genealogy of the Fitzhugh family