Mary Watson

Mary Watson may refer to:


 * Mary Watson (chemist) (1856–1933), British chemist
 * Mary Watson (pioneer) (1860–1881), Australian folk heroine
 * Mary Watson (author) (fl. 2000s), South African author
 * Mrs Watson (Mary Morstan), Mary, wife of Dr Watson, Sherlock Holmes character
 * Mary Jane Watson, Spider-Man character
 * Mary Jo Watson, Seminole art historian
 * Mary Spencer Watson, English sculptor