Helena Rosa Wright (17 September 1887 – 21 March 1982) was an English pioneer and influential figure in birth control and family planning both in Britain and internationally. With her husband she undertook missionary work in China for five years. She qualified as a medical doctor, later specialising in contraception medicine. Helena became renowned as an educator and also as a campaigner for government funded family planning services and became associated with international organisations promoting population control programmes. She was the author of several books and training guides on birth control, sex education and sex therapy.