Thomas McKay (disambiguation)
Thomas McKay was a Scottish-born Canadian businessman and co-founder of Ottawa, Ontario.
Thomas or Tom McKay may also refer to:
- Thomas McKay (fur trader), Canadian fur trader and early settler of Oregon
- Thomas McKay (Canadian politician), Canadian member of Parliament and senator
- Thomas E. McKay, Utah politician and leader in The Church of Jesus Christ of Latter-day Saints
- Thomas McKay (Northwest Territories politician), Canadian Anglo-Métis politician and first mayor of Prince Albert, Saskatchewan
- Thomas McKay (Australian politician), golfer and politician in New South Wales
- Thomas McKay (Alaska politician), American politician
- Thomas McKay (gunner), known as "Tam the Gun", gunner at Edinburgh Castle's One O'Clock Gun
- Thomas J. McKay, professor of philosophy at Syracuse University, New York
- Tom McKay (athlete), Canadian Olympic runner
- Tom McKay (footballer), Australian rules footballer