Rosemary Butler, English-Welsh academic and politician
Dame Rosemary Janet Mair Butler (née McGrath; born 21 January 1943) is a British politician who was Labour Member of the Senedd (AM) for Newport West from 1999 to 2016.

Serving briefly as Secretary for Education in the first two years of the Welsh Government, she was elected Dirprwy Lywydd of the Senedd in May 2007. In May 2011, Butler was elected as the Llywydd of the Senedd. She did not stand for election to the Senedd in the 2016 elections.