.32 may refer to:

• .32 ACP (Automatic Colt Pistol), a pistol cartridge
• .32-40 Ballard, an American rifle cartridge
• .32 H&R Magnum, a rimmed cartridge designed for use in revolvers
• .32 Long Colt, an American centerfire fire revolver cartridge
• .32 NAA
• .32 Remington, an American rifle cartridge
• .32 Rimfire cartridge, chambered in revolvers and rifles in the late 19th and early 20th centuries
• .32 S&W, cartridge was introduced in 1878 for the Smith & Wesson model 1½ revolver
• .32 S&W Long, a straight-walled, centerfire, rimmed handgun cartridge, based on the earlier .32 S&W cartridge
• .32-20 Winchester, the first small-game lever-action cartridge that Winchester produced
• .32 Winchester Self-Loading, an American rifle cartridge
• .32 Winchester Special, a rimmed cartridge created in October 1901 for use in the Winchester Model 94 lever-action rifle

Year 32 (XXXII) was a leap year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Ahenobarbus and Camillus (or, less frequently, year 785 Ab urbe condita). The denomination 32 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Classless Inter-Domain Routing (CIDR) is a method for allocating IP addresses and routing Internet Protocol packets. The Internet Engineering Task Force introduced CIDR in 1993 to replace the previous addressing architecture of classful network design in the Internet. Their goal was to slow the growth of routing tables on routers across the Internet, and to help slow the rapid exhaustion of IPv4 addresses.

Country code: +32
International call prefix: 00
Trunk prefix: 0

A vertical service code or VSC is a special code dialed prior to (or instead of) a telephone number that engages some type of special telephone service. Typically preceded with an asterisk, or * (star), key on the touch tone keypad and colloquially referred to as star codes, most are two digits in length although, as more services are developed, those that use 2 or 3 as the first digit are sometimes three digits in length.