Ethel Sargant FLS (28 October 1863 – 16 January 1918) was a British botanist who studied both the cytology and morphology of plants. She was one of the first female members of the Linnean Society and the first woman to serve on their council. She was the first woman to preside over a Section of the British Association. At Cambridge, she was elected an Honorary Fellow of Girton College in 1913 and also became President of the British Federation of University Women from 1913 until 1918.