Sione Owen is an actress, best known for her work in theatre.

Theatre credits include Olga Sergeyevna Prozorov in Three Sisters, Lydia Languish in The Rivals, Second Nun in The House of Blue Leaves, Dunyasha in The Cherry Orchard, Jenny/Letta in Death of a Salesman, Lady Rowena/Nightingale of Samarkand in Once Upon a Mattress, Mary Boyle in Juno and the Paycock, Ellie May Lester in Tobacco Road, Rapunzel in Into the Woods, Erica in Bait and Switch, Mary/Nurse in I Never Sang For My Father, Neesa McMahon in Celebrity, her Drama-Logue Award-winning performance as Helen Stott in And A Nightingale Sang, and her LADCC, Ovation, and Drama-Logue Award-winning role as Lillian Larue in Counsellor-at-Law (Interact Theatre).