7.65mm may refer to the following firearms cartridges:

• .32 ACP (7.65×17mm Browning)
• 7.65mm Roth–Sauer
• 7.65×20mm Longue
• 7.65×21mm Parabellum
• 7.65×21mm Mannlicher
• 7.65×25mm Borchardt
• 7.65×53mm Mauser