Mary Emma

Mary Emma may refer to:
 * Mary Emma Allison (1917–2010), American school librarian
 * Mary Emma Ebsworth (1794–1881), English dramatist
 * Mary Emma Holmes (1839–1937), American reformer, suffragist and educator
 * Mary Emma Macintosh (died c. 1916), South African suffragist
 * Mary Emma Thames (1929–1944), American murder victim
 * Mary Emma Woolley (1863–1947), American educator, peace activist and women's suffrage supporter