Liam O'Brien (disambiguation)
From Infogalactic: the planetary knowledge core
Liam O'Brien may refer to:
- Liam O'Brien (born 1976), American voice actor and voice director
- Liam O'Brien (footballer, born 1964), Irish international football player
- Liam O'Brien (footballer, born 1991), English football player
- Liam O'Brien (hurler) (born 1950), former Irish hurler
- Liam O'Brien (ice hockey) (born 1994), Canadian ice hockey player
- Liam O'Brien (screenwriter) (1913–1996), American screenwriter and television producer
- Liam O'Brien (actor), Irish actor
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