Viscounts Buttevant (1541)
- John FitzJohn Barry, 1st Viscount Buttevant (1517–1553)
- Edmund FitzJohn Barry, 2nd Viscount Buttevant (d. 1556)
- James FitzJohn Barry, 3rd Viscount Buttevant (d. 1557)
- James de Barry, 4th Viscount Buttevant (b. c. 1520–1581)
- David Barry, 5th Viscount Buttevant (d. 1617)
- David Barry, 6th Viscount Buttevant (1604–1642) (created Earl of Barrymore in 1627/28)
Read more about this topic: Earl Of Barrymore