Crean is an Irish surname anglicised from Ó Croidheáin meaning "descendent of Croidheán", the name Croidheán is derived from the word "croí/croidhe" meaning "heart". Notable people with this surname include:
David Crean, Australian politician
Frank Crean (1916-2008), Australian politician
Simon Crean (born 1949), Australian politician
Thomas Joseph Crean (1873-1923), Irish soldier
Tom Crean (1877-1938), Irish explorer of the Antarctic
Tom Crean (basketball coach) (born 1966), American college basketball coach
