Thomas MacDonald or Tom MacDonald may refer to:
Thomas MacDonald Thomas Logie MacDonald (1901–1973), Scottish astronomer Thomas Harris MacDonald (1881–1957), American road-builder Thomas MacDonald (cricketer) (1908–1998), Irish cricketer Thomas H. MacDonald, British stage and film actor Thomas Kennedy Macdonald (1847–1914), New Zealand politician Tommy Mac (carpenter) (born 1966), American carpenter and woodworker
Tom MacDonald Tom Macdonald (politician) (1898–1980), New Zealand politician Tom Macdonald (writer) (1900–1980), Welsh journalist and novelist Tom MacDonald (rapper) (born 1988), Canadian musician Tommy Mac (musician) (born 1971), Canadian musician
See also Thomas Macdonald-Paterson (1844–1906), politician Thomas McDonald (disambiguation) Tom McDonald (disambiguation)