William Harewell (c. 1616 – 1667) was rector of St Mary's, Oldswinford in Worcestershire until removed from office during the Puritan revolution.
William Har(e)well was a son of Henry Harwell of Coventry being born c. 1616.
He was educated at Oriel College, Oxford, matriculating 31 October 1634 at the age of 18.
The date of the end of his period as rector is not recorded but his successor was in post by 1648.
At the Restoration, Harwell had an association with the church of St Michael's, Worcester[3] He is recorded as conducting a service of thanksgiving for the restoration of King Charles II on 24 May 1660 and a funeral for Dorothea Townshend on 5 June 1660, being the first prayers said for the dead in Worcester since 24 July 1646.