Mercy Kwarley ffoulkes-Crabbe, née Quartey-Papafio (6 January 1894 – 14 June 1974) was a Ghanaian teacher, the first indigenous woman to head a school in the Gold Coast.
At the age of 16, she became the first girl in West Africa to gain a College of Preceptors and Senior Cambridge Certificate.
She continued in the post until retirement in 1949, training her teachers after school in preparation for external certificate examination.
She also introduced evening classes for adult women in Cape Coast, though had to discontinue the initiative after opposition from husbands.
In 1953 she helped Evelyn Amarteifio found the National Federation of Gold Coast Women, and served as its first president.