Thomas Wentworth, 1st Earl of Cleveland, was an English landowner and Royalist general during the Wars of the Three Kingdoms, described by one historian as a "much under-rated field commander". A distant relative of Thomas Wentworth, 1st Earl of Strafford, executed by Parliament in May 1641, his son Thomas Wentworth, 5th Baron Wentworth, also served in the Royalist army and predeceased him in March 1665.

Baron Wentworth is a title in the Peerage of England. It was created in 1529 for Thomas Wentworth, who was also de jure sixth Baron le Despencer of the 1387 creation. The title was created by writ, which means that it can descend via female lines.