Edward Watson, 2nd Baron Rockingham was an English landowner and peer. He was the only surviving son of Lewis Watson, 1st Baron Rockingham of Rockingham Castle and his second wife, Eleanor Manners, daughter of Sir George Manners, of Haddon Hall, Derbyshire and Grace Pierrepont, daughter of Sir Henry Pierrepont.

Lewis Watson, 1st Baron Rockingham was an English landowner and politician who sat in the House of Commons from 1621 to 1624. From 1621 to 1645 when he received his peerage he was known as Sir Lewis Watson, 1st Baronet. He supported the Royalist cause in the English Civil War and for his services was created Baron Rockingham in 1645.