•
Brendan O'Carroll (born 1955), Irish actor, comedian, director, producer and writer •
Daniel O'Carroll (died 1713), British army officer •
Diarmuid O'Carroll (born 1987), Irish footballer •
Eamon O'Carroll (born 1987), Irish rugby footballer •
Fintan O'Carroll (1922–1981) (also known by his
Irish name Fiontán P Ó Cearbhaill), Irish composer •
Gay O'Carroll (born 1964), Irish footballer •
John O'Carroll (born 1958), British artist •
Joseph O'Carroll (1891–1965), Australian politician •
Maggie O'Carroll, British business leader •
Michael O'Carroll (1911–2004), Irish motoring expert and TV/radio/newspaper correspondent •
Paddy O'Carroll (hurler) (1866–1960), Irish hurler •
Paddy O'Carroll (swimmer) (fl. 1986), New Zealand swimmer •
Richard O'Carroll (1876–1916), Irish patriot and union Leader •
Rory O'Carroll (born 1989), Irish footballer and hurler •
Ross O'Carroll (born 1987), Irish hurling and football player •
Sinéad O'Carroll (born 1973), Irish singer and businesswoman • Susie O'Carroll, Irish sportsperson •
Tom O'Carroll (born 1945), British writer and paedophilia advocate •
William Augustine O'Carroll (1831–1885), Irish nationalist, radical liberal, journalist and Queensland newspaper editor ==Fictional==