Barnett, Henrietta (1851–1936)

English social reformer and philanthropist. She worked in the East End of London to improve the education and recreation of the poor, founding the Children's Country Holiday movement in 1878 and, shortly afterwards, the London Pupil Teachers' Association (of which she was president 1891–1907).

Barnett was a co-founder, with her husband Samuel Augustus Barnett, of the Whitechapel Art Gallery, opened in 1901, and helped him in his work among the disadvantaged.