Doreen Agnes Rosemary Julia Warriner OBE (16 March 1904 – 17 December 1972) was an English development economist and humanitarian.

Her parents were Henry Arthur Warriner (1859–1927), a land agent for Weston Park, Long Compton, and his wife Henrietta Beatrice (1876–1953), daughter of Thomas McNulty, a Church of England clergyman of a slum parish in the Staffordshire Black Country, who had left Ireland.

She was investigated by the British security agency, MI5, between 1938 and 1952 for her suspected communist contacts, but apparently no adverse information was recorded.

She made contact with the Society of Friends and a number of other humanitarian organisations, but quickly realised that her first priority was not relief, but getting people vulnerable to Nazi oppression out of Czechoslovakia.

By the end of March, German authorities began refusing exit visas for Czechs, especially communists, although not hindering the departure of Jewish children.

The German crackdown stimulated a large market in forged passports and exit documents in which Warriner was probably involved.

Warriner's close associate at the UK Legation in Prague, diplomat Robert J. Stopford, continued to seek legal authorisation from the Germans for refugees to leave Czechoslovakia while Warriner and her associates smuggled out refugees with forged documents mostly by train through Poland, while hiding hundreds of threatened people, mostly women, in shabby hotels.

[13] Warriner was appointed an Officer of the Most Excellent Order of the British Empire (OBE) in 1941 "for services in 1938 and 1939 in connection with refugees leaving Czechoslovakia".

[14] During World War II, Warriner worked for the Minister of Economic Warfare in Britain and Egypt and in 1944–1946 headed the food-supply division of the United Nations Relief and Rehabilitation Administration's Yugoslavian mission.

She returned to academic life in 1947–1966 at the University of London's School of Slavonic and East European Studies; she was made a reader in 1960 and a professor in 1964.