Abraham Creighton, 2nd Earl Erne (10 May 1765 – 10 June 1842), was an Irish peer and politician.
He was the elder son of The 1st Earl Erne, by his first wife, Catherine Howard.
On his father's death in 1828, Abraham became the second Earl, although still incarcerated and officially insane.
He died in 1842, within months of the death of his father's second wife, Lady Mary Hervey, daughter of The 4th Earl of Bristol, Church of Ireland Bishop of Derry.
The title and the estates including Crom Castle passed to his nephew John Creighton, the third Earl.