William Borlase (c. 1588 – 15 December 1630) was an English politician who sat in the House of Commons in 1614 and from 1628 to 1629.
Borlase was the son of William Borlase of Marlow and Bockmore Buckinghamshire. He matriculated at Magdalen College, Oxford, on 22 June 1604, aged 15. In 1614, he was elected Member of Parliament for Wycombe. He was knighted at Warwick on 5 September 1617. In 1628 he was elected MP for Wycombe again.
Borlase died at the age of about 42. He was the father of William Borlase MP for Marlow.