Lady Tetley's Decree is a 1920 British silent drama film directed by Fred Paul and starring Marjorie Hume, Hamilton Stewart and Philip Hewland. Its plot follows a man whose political career is threatened due to a dispute with his wife provoked by a plot led by a Foreign Office rival of the husband. It was based on a play by Sybil Downing.
The film had five reels.
The film production was announced in April 1919. The film was theatrically shown in the United States in July 1921.