O'Riordan

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