Thomas Vaughan
Thomas Vaughan is the name of the following people:
- Thomas Wayland Vaughan (1870–1952), American geologist, marine biologist, and paleontologist; see T. Wayland Vaughan
- Thomas Vaughan (politician, around 1410) (around 1410–1483), Welsh military, politician and diplomat
- Thomas Vaughan (politician, around 1479) (around 1479–1543), English politician
- Thomas Vaughan (nobleman, † around 1493) († around 1493), Welsh nobleman
- Thomas Vaughan (alchemist) (pseudonym Eugenius Philalethes ; 1621–1665 / 1666), Welsh alchemist and mystic
- Thomas Vaughan (rower) , British rower