Sir John Delaval, 3rd Baronet

Sir John Delaval, 3rd Baronet (7 November 1654 – 4 June 1729^[1]), was an English politician.

He was the fifth son of Sir Ralph Delaval, 1st Baronet, and his wife Anne Leslie, daughter of the 1st Earl of Leven.^[2] Delaval succeeded his older brother Ralph as baronet in 1696.^[3]

Delaval sat as Member of Parliament (MP) for Morpeth from 1701 until 1705.^[4] Subsequently, he represented Northumberland in the Parliament of England until 1707 and then in the Parliament of Great Britain until 1708.^[5] Because of financial problems, he had to sell the family's estates to his cousin Admiral George Delaval.^[6] With his death in 1729, the baronetcy is presumed to have devolved to his son Thomas and thereafter to have become extinct.^[7]