Viscounts Lifford (1781)
- James Hewitt, 1st Viscount Lifford (1709–1789)
- James Hewitt, 2nd Viscount Lifford (1751–1830)
- James Hewitt, 3rd Viscount Lifford (1783–1855)
- James Hewitt, 4th Viscount Lifford (1811–1887)
- James Wilfred Hewitt, 5th Viscount Lifford (1837–1913)
- Archibald Robert Hewitt, 6th Viscount Lifford (1844–1925)
- Evelyn James Hewitt, 7th Viscount Lifford (1880–1954)
- Alan William Wingfield Hewitt, 8th Viscount Lifford (1900–1987)
- Edward James Wingfield Hewitt, 9th Viscount Lifford (b. 1949)
The heir apparent is the present holder's son Hon. James Thomas Wingfield Hewitt (b. 1979).
His heir apparent is his eldest son, Harry Alexander Wyldbore Hewitt (b. 2010).
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