•
Gerald FitzGerald, 8th Earl of Kildare (fl. 1477–1513), aka "Garrett the Great", Lord Deputy of Ireland •
Garrett Acton (born 1998), American professional baseball pitcher •
Garrett Adelstein (born 1986), American professional poker player •
Garrett Arbelbide (1909–1983), American football and baseball player and football coach •
Garrett Atkins (born 1979), American former Major League Baseball third baseman •
Garrett Baumann (born 2004), American baseball player •
Garrett Berry (born 2003), American racing driver •
Garrett Birkhoff (1911–1996), American mathematician •
Garrett Bradbury (born 1995), American football player •
Garrett Bradley (politician) (born 1970), current representative in the Massachusetts House of Representatives for the 3rd Plymouth district •
Garrett Brock Trapnell (1938–1993), con man, bank robber, and aircraft hijacker •
Garrett Broshuis (born 1981), former professional baseball player •
Garrett Brown (born 1942), American cinematographer •
Garrett Brown Jr. (born 1943), former federal judge and attorney •
Garrett Burhenn (born 1999), American baseball player •
Garrett Burnett (1975–2022), Canadian professional ice hockey player •
Garrett Byrne (Irish politician) (1829–1897), Irish nationalist •
Garrett Byrnes (born 1971), American composer •
Garrett Caldwell (born 1973), American-born Canadian former soccer player •
Garrett Camp (born 1978), Canadian entrepreneur •
Garrett Caples (born 1972), American poet •
Garrett Celek (born 1988), American football tight end •
Garrett Clayton (born 1991), American actor, singer, and dancer •
Garrett Cochran (1876–1918), American football player and coach •
Garrett Davis (1801–1872), U.S. Senator and Representative from Kentucky •
Garrett Dellinger (born 2002), American football player •
Garrett Dickerson (born 1995), American football player •
Garrett Dillon (1640–1696), Irish judge, politician and soldier •
Garrett Droppers (1860–1927), American academic and diplomat •
Garrett Eckbo (1910–2000), American landscape architect •
Garrett Epps (born 1950), American legal scholar, novelist, and journalist •
Garrett Festerling (born 1986), professional ice hockey forward •
Garret FitzGerald (1926–2011), Taoiseach of Ireland from 1981 to 1982 and 1982 to 1987 •
Garrett Ford Jr. (born 1970), American football running back •
Garrett Ford Sr. (born 1945), assistant athletics director at West Virginia University •
Garrett Fort (1900–1945), American short story writer, playwright, and Hollywood screenwriter •
Garrett Gardner, American singer and songwriter •
Garrett Geros (born 1999), American para-snowboarder •
Garrett Giemont (born 1959), strength and conditioning coach •
Garrett Gilbert (born 1991), American football quarterback •
Garrett Gilkey (born 1990), American football offensive guard •
Garrett Glaser (born 1953), retired American news reporter •
Garrett K. Gomez (born 1972), American thoroughbred jockey •
Garrett Graff (born 1981), American editor-in-chief and instructor •
Garrett Graham (born 1986), American football tight end •
Garrett Grayson (born 1991), American football quarterback •
Garrett Greene (born 2001), American football player •
Garrett Gruener, founder of Ask.com and a co-founder of Alta Partners •
Garrett Haake (born 1984–1985), American journalist •
Garrett Hammond, American drummer •
Garrett Hardin (1915–2003), American ecologist •
Garrett Hartley (born 1986), American football placekicker •
Garrett Heath (born 1985), American middle-distance and distance runner •
Garrett Hedlund (born 1984), American actor •
Garrett Hilbert (born 1987), American internet personality and member of Dude Perfect •
Garrett Hines (born 1969), American bobsledder •
Garrett Hongo (born 1941), Yonsei, fourth-generation Japanese American academic and poet •
Garrett Howard (1899–1995), Irish hurler •
Garrett Jackson (born 1991), American basketball coach and former player •
Garrett Jernigan, American physicist and astronomer •
Garrett Johnson (born 1984), American shot putter •
Garrett Jones (born 1981), American professional baseball outfielder and first baseman •
Garrett Kelleher, non-executive director of Lightstream Pictures •
Garrett Klugh (born 1974), American rower •
Garrett Lerner, American television writer and producer •
Garrett Lewis (1935–2013), American set decorator •
Garrett Lindholm (born 1988), American football placekicker •
Antony Garrett Lisi (born 1968), American theoretical physicist •
Garrett List (1943–2019), American trombonist, vocalist, and composer •
Garrett Love (born 1988), Republican member of the Kansas Senate •
Garrett Lowney (born 1979), American Greco-Roman wrestler •
Garrett Lucash (born 1978), American pair skater •
Garrett Lynch (born 1977), Irish new media artist •
Garrett MacKeen (born 1994), Canadian ice dancer •
Garrett Mason (born 1985), American politician •
Garrett Mattingly (1900–1962), professor of European history at Columbia University •
Garrett McGhin (born 1995), American football player •
Garrett McIntyre (born 1984), American football linebacker •
Garrett McNamara (born 1967), American professional big wave surfer and extreme waterman •
Garrett Miller (rower) (born 1977), American rower •
Garrett Miller (politician) (1770–1840), Nova Scotia politician •
Garrett Mills (born 1983), American football tight end •
Garrett Mitchell (ice hockey) (born 1991), Canadian ice hockey forward •
Garrett Mock (born 1983), American former professional baseball pitcher •
Garrett Morgan (1877–1963), African-American inventor; created the safety hood smoke protection device and the traffic signal •
Garrett Morris (born 1937), African-American comedian/actor and
Saturday Night Live alumnus •
Garrett Neff (born 1984), American model •
Garrett Nelson (born 2000), American football player •
Garrett Nussmeier (born 2002), American football player •
Garrett Oliver (born 1962), American brewer and beer author •
Garrett Olson (born 1983), American former professional baseball pitcher •
Garrett Phelan (born 1965), artist from Dublin, Ireland •
Garrett J. Pendergrast (1802–1862), officer in the US Navy; served at the beginning of the American Civil War •
Garrett Raboin (born 1985), retired American professional ice hockey player •
Garrett Reisman (born 1968), American astronaut •
Garrett Reynolds (born 1987), American football guard and tackle •
Garrett Richards (born 1988), American professional baseball pitcher •
Garrett Richter (born 1950), Republican member of the Florida Senate •
Garrett Rivas (born 1985), American former football kicker •
Garrett Roe (born 1988), American professional ice hockey left winger •
Garrett Schifsky (born 2003), American ice hockey player •
Garrett Scott (born 1991), American football offensive tackle •
Garrett P. Serviss (1851–1929), American astronomer, popularizer of astronomy, and early science fiction writer •
Garrett Sinnott (born 1987), Irish sportsperson •
Garrett Smith (born 1967), former U.S. soccer defender •
Garrett Stafford (born 1980), professional ice hockey defenceman •
Garrett Stephenson (born 1972), retired Major League Baseball pitcher •
Garrett Stubbs (born 1993), American baseball catcher •
Garrett Swasey (1971–2015), American ice skater and slain police officer •
Garrett Temple (born 1986), American professional basketball guard •
Garrett Uhlenbrock (born 1964), punk rock musician and songwriter •
Garrett Wang (born 1968), American actor •
Garrett Weber-Gale (born 1985), American swimmer •
Garrett Williams (born 2001), American football player •
Garrett Willis (born 1973), American professional golfer •
Garrett Wilson (born 2000), American football wide receiver •
Garrett Wilson (ice hockey) (born 1991), Canadian professional ice hockey winger •
Garrett L. Withers (1884–1953), Democrat, represented Kentucky •
Garrett Wittels (born 1990), American baseball player •
Garrett Wolfe (born 1984), American former football running back •
Garrett Zuercher (born 1979), American deaf actor, director, and playwright ==People with the surname==