Mick O'Brien may refer to:

• Mick O'Brien (boxer) (born 1954), Australian Olympic boxer
• Mick O'Brien (footballer, born 1893), Irish international football player
• Mick O'Brien (footballer, born 1979), English football player
• Mick O'Brien (musician) (born 1961), Irish musician

• Michael O'Brien (disambiguation)

Topics referred to by the same term

This disambiguation page lists articles about people with the same name.
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