| İstanbul Bank | |
| Type: | Bank |
| Foundation: | 1953 |
| Defunct: | 24 November 1983 |
| Location: | Istanbul, Turkey |
| Industry: | Banking |
| Products: | Financial services |
| Parent: | Ziraat Bank |
İstanbul Bank (Turkish: İstanbul Bankası) was a former Turkish bank. It was founded in 1953 with a founding capital of TL 30,000,000. It had the shares of Erdemir and Güneş Sigorta (insurance company).[1] Between 1979-1983 it was the sponsor of Yenişehir S.K. (sports club).It was merged to Ziraat Bank on 24 November 1983.[2]