Peter O'Loughlin may refer to:
Peadar O'Loughlin, Irish musician, Irish flute, fiddle, and uilleann pipes player Peter O'Loughlin (politician), Irish politician, co-founder of Identity Ireland and Pegida Ireland
See also Peter O'Loghlen (1883–1971), Irish Fianna Fáil politician Peter O'Loghlen (Australian politician) (1882–1923), Australian politician Peter Loughlin (1881–1960), Australian politician