Mary Peters may refer to: Mary Peters (athlete) (born 1939), Northern Irish athlete Mary Peters (hymn writer) (1813–1856), British hymn writer Mary Peters (1852–1921), indigenous Oregon woman and ferry operator Mary E. Peters (born 1948), American politician, 15th United States Secretary of Transportation Mary Peters Fieser (1909–1997), née Mary Peters, American chemist Mary Ann Peters (born 1951), American ambassador to Bangladesh Mary Ann Peters (artist) (born 1949), American artist