Pat O'Brien

Pat O'Brien is the name of:

Pat O'Brien (1847-1917), Irish politician
Pat O'Brien (actor ) ( 1899-1983 ), American actor
Pat O'Brien ( politician ) ( b. 1948 ), Canadian politician
Pat O'Brien ( presenter ) ( b. 1948 ), American sports commentator and television presenter
Pat O'Brien (guitarist ) ( b. 1968 ), American guitarist, member of the band Cannibal Corpse