Thomas Stukley (surname also spelled as Stucley, Stukely, Stukeley) (c. 1520 – 4 August 1578) is an English mercenary who serves in combat in France, Ireland, and at the Battle of Lepanto, before his death at the Battle of Alcácer Quibir.

It is alleged that he is an illegitimate son of Henry VIII of England.

A Roman Catholic recusant, he also is a rebel against Queen Elizabeth I.