Joseph Thomas may refer to:
- V. Joseph Thomas, Indian chief of police
- Joseph Thomas (boxer), South African Olympic boxer
- Joe Thomas (wide receiver) (Joseph Earl Thomas), American football player
- Joseph M. Thomas (1829–?), American politician
- Joseph Miller Thomas (1898–1979), American mathematician
- Joseph T. Thomas (born 1973), Australian citizen whose conviction for receiving funds from Al-Qaeda was overturned on appeal
- Joseph Thomas (surveyor) (1803–?), chief surveyor sent by the Canterbury Association to Canterbury, New Zealand
- Joseph Thomas (architect) (1838–1901), Cornish civil engineer and entrepreneur, chiefly associated with Looe
- L. Joseph Thomas (born 1942), American educator and administrator
- Joseph C. Thomas, member of the Mississippi Senate