Thomas O'Reilly
Thomas O'Reilly may refer to:
- Tom O'Reilly (Fermanagh politician), Irish politician in Fermanagh and South Tyrone
- Tom O'Reilly (Cavan politician), Gaelic football player from Cavan and independent TD 1944–1948
- Thomas O'Reilly (Kerry politician), member of the Dáil, 1927–1933
- Thomas O'Reilly (Newfoundland politician), politician and magistrate in Newfoundland
- Thomas O'Reilly (clergyman), Isle of Man born Anglican minister, active in Australia from the 1840s
- Tom O'Reilly (rugby league), Papua New Guinea rugby league international
- Thomas Charles O'Reilly, American bishop