The Honourable Henry Belasyse, or Bellasis, May 1604 to May 1647, was an English politician from Yorkshire who sat in the House of Commons of England variously between 1625 and 1642.

A reluctant Royalist during the First English Civil War, his eldest son Thomas married the daughter of Oliver Cromwell.

[2] He matriculated at Trinity College, Cambridge in 1615, and was admitted to Lincoln's Inn in 1619.

[3] In 1625 Belasyse was elected Member of Parliament for Thirsk until 1626.

[4] In 1628 he was elected MP for Yorkshire and sat until 1629 when King Charles decided to rule without parliament.