Thomas O'Connor
Thomas O'Connor may refer to:
- Thomas O'Connor (bishop) (died 1803), Bishop of Achonry
- Thomas O'Connor (Wisconsin) (1815-1901), an American politician and farmer
- Thomas O'Connor (writer) (1770–1855), an Irishman who emigrated to New York where he was a journalist
- T. P. O'Connor (1848–1929), Irish nationalist, journalist, and politician
- Tommy O'Connor (criminal) (c. 1880–1951), escaped Chicago convict
- Tom O'Connor (comedian) (born 1939), British comedian
- Tommy O'Connor (died 1987), Irish footballer
- Thomas C. O'Connor (died 2001), mayor of Norwalk, Connecticut (1982-1983)
- Tom O'Connor (priest), local historian