Louisa Maria Hubbard (8 March 1836 – 5 November 1906) was an English feminist social reformer and writer. She is best known for her activism for increased opportunities for women's education and employment. Born into a wealthy merchant family in Russia, she moved to England as a young girl and remained there for most of her life. She devoted her time to social activism and used her wealth to fund numerous women's causes. She began her activism in the Anglican deaconess movement in the 1860s. There she organized members and raised awareness of the goals of the movement.