Robert Leigh (disambiguation)

Robert Leigh is a Canadian physicist.

Robert Leigh may also refer to:
 * Robert K. Leigh (1852–c. 1924), English-born Hong Kong architect and civil engineer
 * Sir Robert Holt Leigh, 1st Baronet (1762–1843) of the Leigh baronets
 * Robert Leigh, Irish politician
 * Robert Devore Leigh American political scientist and Bennington College founding president.