Sir Thomas Chaloner (1559 – 17 November 1615) was an English courtier and Governor of the Courtly College for the household of Prince Henry, son of James I. He was also responsible for introducing alum manufacturing to England. He was Member of Parliament for St Mawes in 1586 and for Lostwithiel in 1604. His third son was the Regicide Parliamentarian Thomas Chaloner. He is sometimes confused with his cousin Thomas Chaloner, a naturalist who prospected for alum.