Edmund Blair Leighton (21 September 1852—1 September 1922) was an English painter of historical genre scenes, specializing in Regency and medieval subjects.
Leighton was the son of the artist Charles Blair Leighton. He was educated at University College School, before becoming a student at the Royal Academy Schools. He married Katherine Nash in 1885 and they went on to have a son and daughter. He exhibited annually at the Royal Academy from 1878 to 1920.
Leighton was a fastidious craftsman, producing highly-finished, decorative pictures. It would appear that he left no diaries, and though he exhibited at the Royal Academy for over forty years, he was never an Academician or an Associate.