Mary Townsend

Mary Townsend may refer to:


 * Mary Townsend (entomologist) (1814–1851), American abolitionist and entomologist
 * Mary Townsend (artist) (1822–1869), New Zealand artist
 * Mary Ashley Townsend (1836–1901), American poet
 * Mary Elizabeth Townsend (1841–1918), British philanthropist and co-founder of the "Girls' Friendly Society"
 * Mary Townsend Seymour (1876–1957), African-American politician