Róisín Marie Murphy (pronounced /roiˈʃʲiːnʲ/ in Irish and /roʊˈʃiːn/ in English); born 5 July 1973) is an Irish electronica singer, songwriter, and producer.

Murphy first came to note as part of the electronic music duo Moloko. Her partner in the band was then-boyfriend Mark Brydon. After the two ended their romantic relationship, Murphy released her debut solo album Ruby Blue, written and produced with Matthew Herbert, in 2005. Her second solo album Overpowered was released in 2007. On 10 January 2008, Overpowered received a nomination for the Choice Music Prize in the Republic of Ireland; the award is given each year to an Irish artist who has proved to produce a critically acclaimed album.