Marie Perolz (7 May 1874 – 12 December 1950) was also known as Mary Perolz and Máire Perolz, and as Miss Peroze in one crucial document. She was an advanced Irish nationalist, whose career mirrored that of her husband, James Michael 'Citizen' Flanagan and her friend Constance Markievicz. She was a member of the radical women's group Inghinidhe na hÉireann (which in English would mean Daughters of Ireland) and the Irish Volunteers women's auxiliary Cumann na mBan.