Kızılırmak may refer to:
- Kızılırmak, Çankırı, a town and district in Central Anatolia, Turkey
- Kızılırmak River, Turkey
- Kızılırmak Delta
- Kızılırmak toothcarp, a species of fish
- Erkut Kızılırmak (born 1969), Turkish motor racing driver
- Kızılırmak (group) , a Turkish folk music group