Sir John Hales (1603–1639) was an English courtier and politician who sat in the House of Commons from 1628 to 1629.
He was a student of Gray's Inn in 1600 and matriculated at University College, Oxford, on 13 February 1601, aged 16.
He was knighted on 17 July 1617 and was a gentleman pensioner to King James.
In 1628, he was elected as a Member of Parliament for Queenborough and sat until 1629, when King Charles decided to rule without parliament for eleven years.
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