The Irish surname Cullinane, Ó Cuilleanáin or Ó Cuilleannáin may refer to:
The name seems to be related to Cullen. While Cullen is encountered primarily in Dublin and southeast Ireland, Cullinan/Cullinane used almost exclusively in western Ireland on a North-South-Axis from County Galway to County Cork. A distribution map of the name has been processed on a genealogy site.
Notable persons of the name are:Seán Ó Cuilleanáin (John Cullinane), Irish scribe and translator, fl. 1837–1845
Willie Cullinane, clerical student, 1901 – 23 November 1920.
Charlie Cullinane (born 1945), Irish Sportsman
John Cullinane, one founder of Cullinet
Seán Cullinane (Séán Ó Cuilleannáin) (born 1969), Irish Sportsman
Jonothan Cullinane, director from New Zealand
Cullinane, Queensland in Australia
Cullinane Corporation (Cullinet), former Software Company from Westwood, Massachusetts
Cullinane College, Wanganui, college in New Zealand
Karl Cullinane, main character in the Guardians of the Flame series by Joel Rosenberg
Dr. John Cullinane, archeologist and significant character in The Source by James Michener, 1965