Robert Leighton may refer to:
Robert Leighton (bishop) (1611–1684), Scottish preacher, Bishop of Dunblane, Archbishop of Glasgow, & academic Robert Leighton (author) (1858–1934), British author of historical adventure fiction and books about Dogs Robert Leighton (cartoonist) (born 1960), American writer, puzzle writer and cartoonist Robert B. Leighton (1919–1997), American physicist Robert Leighton (broadcaster) (1956–2008), English broadcaster Robert Leighton (film editor), British film editor Robert Leighton (MP) (born 1628), MP for Shrewsbury (UK Parliament constituency) 1661–1679