John Westbrooke (1616 - 7 June 1666) was an English landowner and politician who sat in the House of Commons in 1659 and 1660.
Westbrooke was the eldest surviving son of Caleb Westbrooke of Witley and his wife Phoebe Taylor, daughter of Francis Taylor of Godalming, Surrey.
He succeeded to the estate of Witley on the death of his father in 1635.
In April 1660, he was re-elected MP for Haslemere for the Convention Parliament.
[1] Westbrooke died at the age of 49 and was buried at Ferring.