Mary Barber

Mary Barber may refer to:


 * Mary Barber (poet) (c. 1685–c. 1755), Irish poet
 * Mary Elizabeth Barber (1818–1899), British-born naturalist
 * Mary Barber (bacteriologist) (1911–1965), British pathologist and bacteriologist
 * Mary Augustine Barber (1789–1860), American educator and Visitation sister