Tags: Swimmer.
Şadan Derya Erke (born November 11 1983 in Istanbul) is a retired Turkish swimmer who specialized in backstroke events. She is a two-time Olympian (2000 and 2004) and a member of Istanbul Swimming Club (Turkish: İstanbul Yüzme İhtisas Kulübü). She previously held Turkish records in the 50 100 and 200 m backstroke until they were all broken by Hazal Sarikaya in 2012.