Rose Mary Barton RWS (Dublin 21 April 1856 – 1929)[1] was an Anglo-Irish artist; a watercolourist who painted landscape, street scenes, gardens, child portraiture and illustrations of the townscape of Britain and Ireland.

Her paintings are in public collections of Irish painting in both Ireland and Britain, including the National Gallery of Ireland and Dublin City Gallery The Hugh Lane in Dublin, and the Ulster Museum in Belfast.

She was cousins with sisters, Eva Henrietta and Letitia Marion Hamilton.

In 1882 she exhibited her picture Dead Game, at the Royal Hibernian Academy (RHA).

In 1893, she became an associate member of the Society of Painters in Water Colours, attaining full membership in 1911.