Frances Harriet Hooker (née Henslow; 30 April 1825 – 13 November 1874) was an English botanist.

In 1872, she translated A General System of Botany, Descriptive and Analytical by Emmanuel Le Maout and Joseph Decaisne into English from the original French.

[3] In 1851, she married Joseph Dalton Hooker;[4] the couple had four sons and three daughters.

[2] Her daughter Harriet Anne Thiselton-Dyer was a botanical illustrator;[5] her son, Reginald, was a statistician.

Frances Harriet Hooker died in Kew, aged 49, on 13 November 1874.