Mrs Humphrey Devereux is a 1771 oil painting on canvas by the Anglo-American painter John Singleton Copley. It is part of the international painting collection of the Museum of New Zealand Te Papa Tongarewa.
John Greenwood commissioned the portrait of his mother on the occasion of her sixtieth birthday. It came to New Zealand in 1843 with John Danforth Greenwood. The painting underwent restoration for the exhibition Angels & Aristocrats in 2012. In 2018 the painting went on long-term display in Te Papa's Tà «rangawaewae: Art and New Zealand exhibition.