Colonel John Okey (baptised 24 August 1606, died 19 April 1662) was a religious radical from London, who served in the Parliamentarian army throughout the Wars of the Three Kingdoms.

A religious Independent and Puritan, when the First English Civil War began in August 1642, Okey enlisted in the Parliamentarian army as a quartermaster.

[1] The date of his original commission is unclear, but Okey's troop was certainly present at the Battle of Cropredy Bridge in June 1644, a Parliamentarian defeat which led to the disintegration of William Waller's Southern Association army.

[4] In 1648, Okey was appointed a commissioner to the High Court of Justice after the king was declared as having "traitorously and maliciously levyed war against the present parliament and the people therein represented" and set to stand trial.

This outlook affected his military career, and he wrote following his own involvement in the battle of Naseby that the parliamentarians: "...should magnifie the name of our God that did remember a poore handfull of dispised men, whom they had thought to have swallowed up before them."

As part of the political compromise that allowed for the restoration of the monarchy at the end of the interregnum, Parliament passed the Act of Free and General Pardon, Indemnity, and Oblivion.

The exceptions of certain crimes such as murder (without a licence granted by King or Parliament), piracy, buggery, rape and witchcraft, and people named in the act such as those involved in the regicide of Charles I.

In 1662, however, while in the Netherlands, Okey was arrested along with Barkstead and Miles Corbet by Sir George Downing, the English ambassador to the Dutch court.

Permission had been granted for Okey to be buried by his family in Stepney next to his first wife, but a large crowd had gathered to pay their respects and he was interred within the Tower of London.