William de Beauchamp was an English baron and hereditary sheriff.

He was born and lived in Elmley Castle

Elmley Castle

Elmley Castle is a village and civil parish in Worcestershire, in England, United Kingdom. It is located on the north side of Bredon Hill 4 kilometres south east of Pershore in the local government district of Wychavon.- Amenities and history :...

, Worcestershire the eldest son of Walter de Beauchamp and his wife Joan de Mortimer.

On the death of his father in 1236 he became hereditary Sheriff of Worcestershire

High Sheriff of Worcestershire

This is a list of Sheriff and since 1998 High Sheriffs of Worcestershire.The Sheriff is the oldest secular office under the Crown. Formerly the Sheriff was the principal law enforcement officer in the county but over the centuries most of the responsibilities associated with the post have been...

 which title he held until his own death.

He died in 1268. He had married Isabel, daughter of William Mauduit and sister of William Maudit, 8th Earl of Warwick

William Maudit, 8th Earl of Warwick

William Maudit , 8th Earl of Warwick was an English nobleman and participant in the Barons' War....

. They had 8 children, of which his heir was William, who inherited the title of Earl of Warwick from his uncle.