Alexandra Orr or Alexandra Leighton; Alexander Sutherland Orr; Mrs. Sutherland Orr (23 November 1828 – 23 August 1903) was an English biographer of Robert Browning. She was a model for her brother Frederic Leighton in at least two paintings.

Alexandra Orr or Alexandra Leighton; Alexander Sutherland Orr; Mrs. Sutherland Orr (23 November 1828 – 23 August 1903) was an English biographer of Robert Browning. She was a model for her brother Frederic Leighton in at least two paintings. Less