Önder Çengel (born 21 July 1982) is a Turkish-Swiss former professional footballer who played as a striker. At the start of the 2004–05 season, Turkish champion Fenerbahçe tried Önder and Gökhan İnler in the season start training camp in Germany, but coach Christoph Daum declared that both players could not play for Fenerbahçe. Although wearing shirt no.7, he just made two unused sub appearances for Diyarbakırspor in April 2005. He signed a three-year contract with Gaziantepspor in summer 2007. On 15 February 2007, he signed for FC Winterthur. He is transfer to Karşıyaka in 2008.