Peter Anthony O'Malley (born 23 June 1965) is an Australian professional golfer.

O'Malley won the Australian Junior Championship and the New Zealand Amateur in 1986.

He was runner-up to Mark James in his first European Tour event, the 1989 Dubai Desert Classic, and has since won three titles on the European Tour.

He made the top-100 on the European Tour Order of Merit every year from 1989 through to 2007, with a best ranking of tenth in 1995.

CUT = missed the half-way cut "T" = tied QF, R16, R32, R64 = Round in which player lost in match play "T" = Tied Amateur Professional