Patrick Moriarty may refer to:
- Patrick Moriarty, Jr. (1851–1928), mayor of the City of Ashland, Kentucky
- Patrick E. Moriarty (1805–1875), Irish born priest
- Pat Moriarty (American football) (born 1955), football executive for the Baltimore Ravens in the National Football League
- Paddy Moriarty, Gaelic football player from Armagh, Northern Ireland
- Paddy Moriarty, resident of Larrimah, Northern Territory who disappeared in 2018