Paul O'Brien (disambiguation)

Paul O'Brien (born 1978) is an Australian actor.

Paul O'Brien may also refer to:

• Paul O'Brien (rugby league), former South Sydney Rabbitohs player
• Paul F. O'Brien (born 1950), VFL footballer for Carlton
• Paul J. O'Brien (born 1961), VFL footballer for Essendon and Melbourne
• Paul S. O'Brien (born 1948), VFL footballer for Fitzroy