is a traditional singer from Corca Dhuibhne, a Gaeltacht area in West Kerry. She lectures in Amhránaíocht (traditional singing) in the Conservatory of Music, D.I.T. Dublin. Singer-in-residence at the annual Harp Festival 'Cáirde na Cruite'. She has travelled widely and has a special interest in Scots Gaelic and Welsh traditional songs.
Seosaimhín has worked in radio and television in Ireland for many years. One of a large family of traditional singers and musicians, most notably Seamus and Breandán, Seosaimhín recorded a CD 'Suailcí Sona: Songs from a Gaeltacht Childhood', with her sister Caitlín and brother Seamus. She presented 'Siamsa', a programme of classical music on TG4 and 'Mountain Lark' on RTE.