9×23mm can refer to:
- 9×23mm Winchester, a pistol cartridge jointly developed by Winchester and Colt
- 9×23mm Steyr, a centerfire pistol cartridge developed for use in the Steyr-Hahn M1912
- 9×23mm Largo, a centerfire pistol cartridge developed for use in the Bergmann-Mars
This disambiguation page lists and links articles and pages that either have the same names, or use similar terms in their context.