John Whiteway (1614 – c 1677) was an English wool merchant and politician who sat in the House of Commons at various times between 1654 and 1660.
Whiteway was the only surviving son of William Whiteway of Dorchester and his wife Mary Mounsell, daughter of John Mounsell, merchant of Weymouth, Dorset.
In 1646, he inherited two farms near Dorchester on the death of a nephew and became a J.P. for Dorset from 1647 to July 1660.
In March 1660, he was commissioner for militia again and in April 1660 was re-elected MP for Dorchester in the Convention Parliament.
He married secondly Martha, widow of Francis Sedgwicke and of Timothy Alsop, brewer of Hackney, Middlesex and daughter of Ralph Triplett, brewer of Thames Street, London on 9 July 1667.