Mary Gammell Pease (11 December 1861 – 23 February 1950), known as Marjorie Pease, was a British politician. Born Mary Gammell Davidson in Kinfauns in Perthshire, she was educated at Cheltenham Ladies College, where she qualified as a teacher. She then worked at several schools in London where she joined the Fabian Society in 1886. Through the society, she met Edward R. Pease and the two married in 1889. At this time Mary adopted the first name "Marjorie".