Elçin Sangu (born 13 August 1985) is a Turkish actress and model, best known for her leading role Defne in the Star TV romantic comedy series Kiralık Aşk from June 2015 until its finale in January 2017. For this work, she has been nominated and has received multiple awards in Turkey, including three Golden Butterfly Awards. Sangu also appeared in the television series Öyle Bir Geçer Zaman ki (2011), Aşk Kaç Beden Giyer (2012–2013), Bir Aşk Hikâyesi (2013–2014), Kurt Seyit ve Şura (2014), and Sevdam Alabora (2015).
Elçin Sangu was born on 13 August 1985, as the only child of a ethnic Circassian family from Izmir in Western coast of Turkey. She graduated from Opera Department at Mersin University and took acting lessons at the Sahne Tozu Theatre. In 2011, she was cast as Jale in Kanal D drama series Öyle Bir Geçer Zaman ki, where she also sang and played piano. Between 2012–2013, she played the lead role of Nehir in Aşk Kaç Beden Giyer. From 2013 to 2014, she starred as Eda in Bir Aşk Hikâyesi, an adaptation of the South Korean television series I'm Sorry, I Love You. In 2014, she portrayed Güzide in historical period drama series Kurt Seyit ve Şura filmed in Russia, Turkey, and Ukraine. Following another leading role in 2015 aTV series Sevdam Alabora, she started acting in Kiralık Aşk the same year.