Sir Edward Butler, 1st Viscount Galmoye (died 1653) was the eldest son of Piers FitzThomas Butler and the Honourable Katherine Fleming, daughter and co-heiress of Thomas Fleming, 10th Baron Slane and his wife Catherine Preston. His father was the illegitimate son of Thomas Butler, 10th Earl of Ormond. Edward Butler was invested as a Knight on 1 November 1619. He held the office of High Sheriff of County Kilkenny, Ireland in 1640. In 1646 he attended the Confederation of Kilkenny. He was created 1st Viscount Galmoye on 16 May 1646. He lived at , County Kilkenny. He died in 1653 and was succeeded by his grandson, Edward Butler.