İstanbulspor Kulübü is a football and sports club based in İstanbul, Turkey, competing in the Turkish Süper Lig (2022–23), the top tier of the Turkish football league system. This unofficial İstanbulspor flag (Turkish: resmi olmayan İstanbulspor bayrağı) consists of the team's official logo on a yellow background derived from the club's traditional colours.
| Flag Proportion: | 3:5 (standard flag ratio) |
|---|---|
| Flag Format: | Animated GIF (25-frame loop) |
| Flag Usage: | Fan-made / unofficial digital flag |
The black shield in the logo features a Turkish flag in the upper left corner, a yellow monogram formed by the initials "İ" and "S" in the centre, the team name "İSTANBULSPOR" at the bottom, and the founding year "1926" in the upper right corner. The yellow and black colours are closely associated with İstanbulspor and are commonly used in the club's visual identity. These colours are generally interpreted as representing energy, determination, and strength in sports branding. Overall, the logo reflects İstanbulspor's identity and its historical presence in Turkish football.
Alternative Flag Designs
| Team name: | İstanbulspor Kulübü |
|---|---|
| Team nicknames: | Boğalar (The Bulls), İstanbul'un Takımı (Istanbul's Team), Halkın Takımı (People's Team) |
| Team abbreviation: | ISK |
| Founded: | 1926 |
| Location: | Istanbul, Turkey |
| Ground: | Necmi Kadıoğlu Stadium |
| Capacity: | 4,491 |
| League: | Süper Lig |
| Team Colors: | Yellow and Black |
| Championships: | - |
| Second places: | - |
| Seasons in top division: | 25 |
| Mascot: | - |










