Menna Patricia Humphreys Gallie (18 March 1919 – 17 June 1990) was a Welsh-speaking Welsh novelist and translator. She is best known for her novels in the English language and as the first translator into English of the Welsh language novel Un Nos Ola Leuad by Caradog Prichard, the Welsh poet and novelist, as Full Moon (1973). Gallie was a life-long Labour Party activist. However, she felt that feminism was ideologically hidebound. And she was cool towards what she regarded as 'the more insistent parts' of second-wave feminism.