Thomas Welsh
Thomas Welsh may refer to:
- Thomas Welsh (composer) (1780-1848), English composer and operatic singer
- Thomas Welsh (general) (1824-1863), brigadier general during the American Civil War
- Thomas J. Welsh, American architect of the Woodland Opera House
- Thomas Jerome Welsh, American Roman Catholic bishop
- Thomas Welsh (rower) (born 1977), American rower
- Thomas Welsh (basketball) (born 1996), American basketball player
- Thomas Welsh (JAG), an Army lawyer, see Donnie Thomas (US Army)