Sir Thomas Parker (1595 – 31 May 1663) of Ratton was an English landowner and politician who sat in the House of Commons between 1626 and 1656.

He was elected MP for Hastings in 1626, Seaford in 1641, Sussex in 1656 and was knighted in 1617.

[1] He was the eldest son and heir of Sir Nicholas Parker (1547 – 1620) of Ratton and his third wife, Catherine Temple, daughter of Sir John Temple of Stowe, Buckinghamshire.

[2][3] He married, in 1618, Philadelphia Lennard, daughter of Henry Lennard, 12th Baron Dacre and Chrysogona Baker, daughter of Sir Richard Baker of Sissinghurst.

Lady Parker died 12 January 1662.