The 1925–26 İstanbul Football League season was the 19th season of the league. Galatasaray SK won the league for the 8th time. The tournament was single-elimination, not league as in the past.
Season
Finals Quarter Finals Galatasaray - Beykozspor SK 6:2 Fenerbahçe - Harbiye SK 3:2
Semi finals Fenerbahçe - Fatih İdman Yurdu SK 9:0 Galatasaray SK - Vefa SK 2:1
Final Fenerbahçe - Galatasaray SK 0:3 Galatasaray SK - Fenerbahçe 3:1
References Tuncay, Bülent (2002). Galatasaray Tarihi. Yapı Kredi Yayınları Dağlaroğlu, Rüştü. Fenerbahçe Spor Kulübü Tarihi 1907-1957