Hayal Köseoğlu (born 20 December 1992) is a Turkish actress and singer, known for her roles Açelya in Mucize Doktor and Sasha Doğan in Mahkum.
She completed her education at Istanbul Aydın University, Faculty of Fine Arts, Department of Drama and Acting.
She also appeared in the TV series Aşk-ı Memnu, Muhteşem Yüzyıl, İstanbullu Gelin.
She had leading role in youth series Arkadaşlar İyidir.
She played in Gain web series Cezailer about Rosenhan experiment.