John Monson (c.1628 – 14 October 1674) was an English politician who sat in the House of Commons in two periods between 1660 and 1674.
Monson was the son of Sir John Monson, 2nd Baronet of South Carlton and Broxbourne, Hertfordshire and his wife Ursula Oxenbridge, daughter of Sir Robert Oxenbridge of Hurstbourne Priors, Hampshire.
At the general election of 1661, he lost his seat to Sir Robert Bolles.
In 1664 in a by-election following the death of Bolles, he was elected MP for Lincoln for Cavalier Parliament.
He was remembered as "a gentleman of a brisk humour, a ready wit, clear parts, quick apprehension, good elocution, an excellent temper, great prudence, free from partiality, admired by the gentry, and in all things well accomplished for business".