Sir John Barker, 4th Baronet

Sir John Barker, 4th Baronet (1655 – 14 August 1696) was an English baronet and Tory politician.

He was the second son of Sir John Barker, 2nd Baronet and Winifred Parker, daughter of Sir Philip Parker. In 1665, he succeeded his older brother Jeremy as baronet. Barker was educated at Merton College, Oxford.

In 1680, he entered the British House of Commons and sat as Member of Parliament (MP) for Ipswich until his death in 1696.

Barker married Bridget Bacon, daughter of Sir Nicholas Bacon. They had a daughter and a son. Barker was succeeded in the baronetcy by his only son William.