Anadolu Üniversitesi

Eskişehir's other club plays fourth-tier football at a stadium built for someone else. Eskişehir Atatürk Stadium opened in 2016 with 34,930 seats and belongs, in practice, to Eskişehirspor; Anadolu Üniversitesi rents the ground, and the meetings between the two are billed locally as the Eskişehir Derby.

The club grew out of Anadolu Üniversitesi GSK, the university's sports society founded in 1984, with football as one branch among several. That changed in the 2022–2023 season, when the team won its group in the Bölgesel Amatör Lig and earned promotion to the TFF 3. Lig — the first time in the club's history it had reached that level. The following campaign it reached the promotion play-offs before Efeler 09 SK ended the run in the second round.

Lig with Sakaryaspor, Karşıyaka and Samsunspor.

Ownership passed to a private company, Eskişehir Anadolu Spor Faaliyetler A.Ş., run by Taylan Şahin, and from the 2025–2026 season the team competes under that name; the university kept its other amateur branches.