Mary Louisa Whately (August 31, 1824 – March 9, 1889) was an English missionary and author in Egypt. She spent over 30 years building schools for both girls and boys, ministering to their families and writing books based on her experiences. Whately was the first to build educational facilities for the lower classes in Cairo, especially Muslim women, and started schooling for all, rather than only for those who could pay for it.