Mersin İdmanyurdu (also Mersin İdman Yurdu, Mersin İY or MİY) is a Turkish sports club from Mersin, Turkey in the eastern Mediterranean Region. The football team has played in the Süper Lig, Turkey's first level division, since the 2011–12 season. The team played in the Turkish first division for 11 seasons, and after the 1983–84 season the football team played in the Turkish second and third divisions. The team was promoted to the Turkish second level division after the 2008–09 season. MİY became the champions of the Turkish second division during the 2010–11 season and earned promotion to the Turkish Süper Lig during the 2011–12 season. Previous ground of the team was 10,125 capacity Tevfik Sırrı Gür Stadium. In 2013, their new 25,534 person capacity stadium, New Mersin Stadium, was inaugurated on 23 March 2013 with a TFF First League match against Gaziantep Büyükşehir Belediyespor. Their main rivals are Adana Demirspor, Adanaspor and Tarsus İdmanyurdu, and are friendly with Bucaspor.