Edith How-Martyn (née How; 17 June 1875 – 2 February 1954) was a British suffragette and a member of the Women's Social and Political Union (WSPU).

The following year she was appointed joint secretary of the WSPU with Charlotte Despard and it was in Oct 1906 that she was arrested in the lobby of the House of Commons trying to give a speech.

In 1907, together with Charlotte Despard, Alice Abadam, Theresa Billington-Greig, Marion Coates-Hansen, Irene Miller[citation needed], Bessie Drysdale, Maude Fitzherbert) were signatories to a letter to Emmeline Pankhurst explaining their disquiet on 14 September 1907.

[5] Between November 1934 and Mar 1935 How-Martyn travelled through India campaigning for birth control, then accompanied Sanger on her trip to Asia the following year.

Norman Haire, who had returned to Australia, informed Margaret Sanger that How-Martyn hoped to 'join forces with him' to do something for birth control despite the war.

[7] She had a stroke and died in an Australian nursing home[8] Her name and picture (and those of 58 other women's suffrage supporters) are on the plinth of the statue of Millicent Fawcett in Parliament Square, London, unveiled in 2018.