Violet Florence Martin (11 June 1862 – 21 December 1915) was an Irish author who co-wrote a series of novels with cousin Edith Somerville under the pen name of Martín Ross in the late 19th and early 20th centuries.
Violet Martin and Edith Somerville were second cousins, and originally met on January 17, 1886 at Castletownshend, after which they became lifelong companions and literary partners. They came to share a home in Drishane, County Cork. In 1889, Violet adopted the pseudonym Martin Ross, which comprised her surname and the name of her ancestral home; thus the authors were called Somerville and Ross. Their works include The Real Charlotte (1889), Some Reminiscences of an Irish R.M. and In The Vine Country.
Martin was a convinced Irish Unionist, in opposition to Somerville's open nationalism. Both she and her brother Robert were well-regarded members of the literary circle in Irish unionism. However, unlike her brother, Martin was a convinced suffragette, becoming vice-president of the Munster Women's Franchise League. While on friendly terms with the leading members of the Irish literary revival such as W.B. Yeats and Lady Gregory, she objected to their romantic version of Irish peasantry. She was on good terms with Edward Martyn, partner of Gregory and Yeats - and her kinsman - and shared his love of the Irish language and culture.
Violet was seriously injured in a riding accident in November 1898, from which she never fully recovered. This was a contributing factor to her death in Drishane, County Cork, in 1915. Edith Somerville continued to write under their joint literary names, claiming that they were still in contact. The two women left thousands of letters and 116 volumes of diaries, detailing their lives, much of them yet unpublished. She was awarded a posthumous DLitt. by Trinity College Dublin.