Lisa Dwan is an Irish actress. She is best known for her work in theatre, performing in Samuel Beckett adaptations among other works. She began her career in the Fox Kids series Mystic Knights of Tir Na Nog (1998–1999). More recently, she starred in the Netflix series Top Boy (2019–2023). She also appeared in the RTÉ soap opera Fair City (2006–2007) and the ITV drama Rock Rivals (2008).

Dwan was born in Coosan, Athlone, County Westmeath, Ireland, and originally trained as a ballet dancer. She was chosen to dance with Rudolf Nureyev in the Ballet San Jose's production of "Coppélia" in Dublin when she was 12 years old. She left school at 14 after winning a scholarship to attend the Dorothy Stevens School of Ballet in Leeds, and also danced with the London Lewis Ballet Company. Dwan began acting professionally as a teenager.