Bussy Mansel, 4th Baron Mansel

Bussy Mansel(l), 4th Baron Mansel(l) (died November 29, 1750), was a Welsh peer.

He inherited the barony of Margam (or "Margram") from his brother, Christopher Mansel, 3rd Baron Mansel in 1744.

Bussy Mansel married Lady Elizabeth Hervey, the daughter of John Hervey, 1st Earl of Bristol and sister of John Hervey, 2nd Baron Hervey, on May 17, 1724. On March 13, 1729, he married Barbara Villiers, daughter of William Villiers, 2nd Earl of Jersey; she survived him. There were no children from either marriage. On Bussy Mansel's death, the barony became extinct and his property was inherited by his sister, Mary Mansel.