The title of Viscount Doneraile has been twice created in the Peerage of Ireland, both times for members of the St Leger family. It was first created in 1703, but this creation became extinct in 1767. It was then created once again in 1785. The Viscount bears the subsidiary title of Baron Doneraile (1776), also in the Peerage of Ireland. The title is pronounced 'Dunnaral'.

Viscounts Doneraile, First Creation (1703)

• Arthur St Leger, 1st Viscount Doneraile (d.1727)
• Arthur St Leger, 2nd Viscount Doneraile (1694-1734)
• Arthur Mohun St Leger, 3rd Viscount Doneraile (1718-1750)
• Hayes St Leger, 4th Viscount Doneraile (1702-1767)

Viscounts Doneraile, Second Creation (1785)

• St Leger St Leger, 1st Viscount Doneraile (d.1787)
• Hayes St Leger, 2nd Viscount Doneraile (1755-1819)
• Hayes St Leger, 3rd Viscount Doneraile (1786-1854), elected a Representative Peer in 1830
• Hayes St Leger, 4th Viscount Doneraile (1818-1887), elected a Representantive Peer in 1855
• Richard Arthur St Leger, 5th Viscount Doneraile (1825-1891)
• Edward St Leger, 6th Viscount Doneraile (1866-1941)
• Hugh St Leger, 7th Viscount Doneraile (1869-1956)
• Algernon Edward St Leger, 8th Viscount Doneraile (1878-1957)
• Richard St John St Leger, 9th Viscount Doneraile (1923-1983)
• Richard Allen St Leger, 10th Viscount Doneraile (born 1946)