Rosalyn "Roz" Bulmer (born 4 May 1979 from Norwich) is an English darts player, who currently plays in British Darts Organisation events. She qualified for the 2019 BDO World Darts Championship.
In 2018, Bulmer qualified for the 2019 BDO World Darts Championship as after the year's performances saw her placed 12th on the rankings. She was defeated by Sharon Prins in the first round.