Mersin İdmanyurdu (also Mersin İdman Yurdu, Mersin İY, or MİY) Sports Club; located in Mersin, east Mediterranean coast of Turkey in 2010-2011. The 2010–11 season was the 6th season of Mersin İdmanyurdu football team in TFF First League, the second level division in Turkey since 2001-02. MİY has taken place 33rd time in the second level football division since its foundation in 1963-64. At the end of the season the team finished the league at first place and promoted to Spor–Toto Super League after 28 seasons.

Ali Kahramanlı was president of the club. Yüksel Yeşilova was head coach at the start of the season. After 8th round Nurullah Sağlam took over the position. Goalkeeper and team captain Kerem İnan was the most appeared player with 32 appearances, while Adem Büyük, who was loaned in the mid-season became the season top goalscorer with 10 goals.

Pre-season preparation games resulted as follows (at Kızılcahamam camp):

TFF First League was played as "Bank Asya Birinci Lig" in 2010–11 due to sponsorship reasons. 17 teams attended. The winners and runners-up were promoted to 2011–12 Süper Lig. The third team to be promoted was determined through promotion play-off games. Bottom two teams were relegated to 2011–12 TFF Second League. MİY attended 6th time to the league in its 10th season and finished at top, gaining direct promotion to 2011–12 Süper Lig at the end of the season.

Mersin İdmanyurdu (MİY) 2010–11 TFF First League season league summary:

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