•
Geraint of Dumnonia (died 710), Celtic king •
Geraint Anderson (born 1972), British newspaper columnist and son of Donald Anderson, Baron Anderson of Swansea •
Geraint Davies (Plaid Cymru politician) (born 1948), Welsh politician •
Geraint Davies (Labour politician) (born 1960), British politician •
Geraint Davies (rugby league) (born 1986), Welsh rugby player •
Geraint Talfan Davies (born 1943), Welsh journalist •
Geraint Wyn Davies (born 1957), Welsh actor and director •
Geraint Evans (1922–1992), Welsh singer •
Geraint Gruffydd (1928-2015), Welsh scholar •
Geraint Howells (1925–2004), British politician •
Geraint Jarman (1950–2025), Welsh musician •
Geraint H. Jenkins (1946–2025), historian of Wales •
Geraint Jones (born 1976), English cricketer •
Geraint F. Lewis (born 1969), British astrophysicist •
Geraint Lewis (born 1974), former Welsh international rugby union player •
Geraint Morgan (1920–1995), British politician •
Geraint Morris (1941–1997), Welsh film director •
Geraint Thomas (born 1986), Welsh cyclist •
Geraint Watkins (born 1951), Welsh musician •
Geraint Williams (born 1962), Welsh football player •
D. Geraint James (1922–2010), Welsh physician •
J. Geraint Jenkins (1929–2009), Welsh maritime historian and historian of rural crafts ==Fictional or invented characters==