Althea McNish FSCD (1924–2020) was an artist from Trinidad who became the first Black British textile designer to earn an international reputation. Born in Trinidad, McNish moved to Britain in the 1950s. She was associated with the Caribbean Artists Movement (CAM) in the 1960s, participating in CAM's exhibitions and seminars and helping to promote Caribbean arts to a British public. Her work is represented in the collections of the Victoria and Albert Museum, the Whitworth Museum, the Philadelphia Museum of Art, the Museum of Domestic Design and Architecture and the Cooper-Hewitt (Smithsonian Design Museum), among other places.