Mary Barclay (20 Julie 1916 – 19 Februarie 2008) was 'n Engelse aktrise. Sy was bekend vir haar rolle in die rolprente Sins of the Fathers (1948) en Sex and the Other Woman (1972), en in die televisiereekse BBC Sunday-Night Theatre (1950) en Alexander Graham Bell (1965). 1948: Sins of the Fathers 1972: Sex and the Other Woman 1976: Justine 1950: BBC Sunday-Night Theatre 1957: The Adventures of Clint and Mac 1965: Alexander Graham Bell 1952: Florence Nightingale Mary Barclay in die Internet-rolprentdatabasis