Margaret Helen Barnard (1898–1992) was a British painter and linocut maker.
Barnard was born in Bengal, where her father was serving with the Indian Police Force.
At the age of seven she returned to Britain for her education, and went to Bath High School, and St. Leonard's Fife.
[2] She then moved to London, where she attended the Grosvenor School of Modern Art like her contemporary Sybil Andrews, studying under Claude Flight.
In 1924 she married artist Robert George Sang Mackechnie (1894-1975), who would join the British art group the Seven and Five Society in 1927.