Charles Lennox may refer to:

Charles Lennox, 1st Duke of Richmond and 1st Duke of Lennox (1672-1723) Charles Lennox, 2nd Duke of Richmond and 2nd Duke of Lennox (1701-1750) Charles Lennox, 3rd Duke of Richmond and 3rd Duke of Lennox (1734-1806) Charles Lennox, 4th Duke of Richmond and 4th Duke of Lennox (1764-1819) Charles Lenox, the amateur detective featured in Victorian era mystery novels by Charles Finch

See also Charles Gordon-Lennox (disambiguation)