There are several cartridges that are commonly referred to as 9mm.
- 9×19mm Parabellum, known as "9mm Luger"
- 9×18mm Makarov, known as "9mm Makarov"
- 9×23mm Steyr
- 9×25mm AUPO
This disambiguation page lists and links articles and pages that either have the same names, or use similar terms in their context.