Mary Louisa

People with the name Mary Louisa include:


 * Mary Louisa Armitt (1851–1911) British polymath
 * Mary Louisa Bruce, Countess of Elgin (1819–1898)
 * Mary Louisa Chitwood (1832–1855), American poet
 * Mary Louisa Gordon (1861−1941) British prison inspector
 * Mary Louisa Molesworth (1839–1921), English writer of children's stories
 * Mary Louisa Page (1849–1921), American architect
 * Mary Louisa Georgina Petrie (1861–1935), British author
 * Mary Louisa Skinner (1876–1955), Australian Quaker, nurse, and writer, wrote a memoir of World War I experiences
 * Mary Louisa Toynbee (born 1946), British journalist
 * Mary Louisa Whately (1824–1889), English missionary in Egypt, known for building schools
 * Mary Louisa White (1866–1935), British composer
 * Mary Louisa Willard (1898–1993), forensic scientist