Mary Richardson (1882/1883–1961) was a suffragette in the UK.
Mary Richardson may also refer to: Dame Mary Richardson (British educator) (born 1936), British headteacher and educationist Mary Curtis Richardson (1848–1931), American impressionist painter Mary D. Richardson, birth name of Mary D. Rosengarten (1846–1913), American writer Mary Jane Richardson Jones (1819–1910), American abolitionist, suffragist, and activist Mary Margaret Richardson (1943–2021), American tax lawyer Mary Richardson Kennedy (1959–2012), wife of Robert F. Kennedy Jr. Mary Klicka (born Mary Victoria Richardson; 1921–2007), Canadian-American dietitian