O'Riordan is a surname of Irish origin.
Famous people with this surname include:
Brendan O'Riordan (contemporary), Irish professional football player,
Brian O'Riordan (born 1981), Irish professional rugby player,
Cait O'Riordan (born 1965), British rock musician,
Conal Holmes O'Connell O'Riordan (1874-1948), Irish dramatist and novelist,
Dolores O'Riordan (born 1971), Irish singer and songwriter,
Don O'Riordan (born 1957), Irish professional football player and coach,
Eugene O'Riordan (contemporary), Irish author and professor of mathematics,
Gerry O'Riordan (fl. mid-20th century), Irish hurler,
Julius O'Riordan (born 1966), British DJ,
Mark O'Riordan (born 1980), Irish hurler,
Michael O'Riordan (1917-2006), Irish communist; founder of the Communist Party of Ireland,
Mossy O'Riordan (fl. mid-20th century), Irish hurler,
Seán Ó Ríordáin (1917-1977), an Irish language poet,
Robert O'Riordan (born 1943), Canadian author,
This page or section lists people with the surname O'Riordan. If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.