Lorna Moon (born Nora Helen Wilson Low; 16 June 1886 – 1 May 1930) was a Scottish author and screenwriter from the early days of Hollywood. She is best known as the author of the bestselling novel Dark Star (1929) and as one of the earliest and most successful female screenwriters. As a screenwriter, she developed screenplays for notables including Gloria Swanson, Norma Shearer, Lionel Barrymore and Greta Garbo.