Slammer

Slammer may refer to:
 * SQL Slammer, a computer worm
 * AIM-120 AMRAAM, an American missile, nicknamed Slammer
 * Sholef / Slammer, an Israeli self-propelled howitzer gun
 * The Slammer, a children's talent show on British television
 * Slammer Guitars, a budget subsidiary of Hamer Guitars
 * Penn Jillette's house in Las Vegas, known as "the slammer"
 * Slammer (ride), at Thorpe Park theme park, England
 * Slammer, an entity who changes a telephone carrier of a telephone line illegally (Telephone slamming)
 * British Slam-door trains, also known as slammers
 * Slammers, a mercenary unit in the science fiction Hammerverse
 * A type of POG, a children's game
 * "The slammer", a colloquial term for prison