RP, R-P, Rp, R-p, or rp may refer to:
The RPK (Ruchnoy Pulemyot Kalashnikova, Russian: Ручной пулемёт Калашникова or "Kalashnikov hand-held machine gun") is a 7.62×39mm light machine gun of Soviet design, developed by Mikhail Kalashnikov in the late 1950s, parallel with the AKM assault rifle.
RPG Maker, known in Japan as RPG Tsukūru (RPGツクール, sometimes romanized as RPG Tkool), is the name of a series of programs for the development of role-playing games (RPGs) first created by the Japanese group ASCII, then succeeded by Enterbrain.
RPM Package Manager (RPM) (originally Red Hat Package Manager; now a recursive acronym) is a package management system.
The RPG-7 (Russian: РПГ-7) is a portable, reusable, unguided, shoulder-launched, anti-tank rocket-propelled grenade launcher.
RPG Maker VX (RPGツクールVX, RPG Tsukūru VX) is a version of PC program RPG Maker series. It has been superseded by RPG Maker VX Ace, which is an improved and enhanced version of RPG Maker VX.
The RPG Group is an Indian industrial conglomerate headquartered in Mumbai, Maharashtra. It was founded by R. P.
RPL (derived from Reverse Polish Lisp according to its original developers, whilst for a short while in 1987 HP marketing attempted to coin the backronym ROM-based Procedural Language for it.) is a handheld calculator operating system and application programming language used on Hewlett-Packard's scientific graphing RPN (Reverse Polish Notation) calculators of the HP 28, 48, 49 and 50 series, but it is also usable on non-RPN calculators, such as the 38, 39 and 40 series.
The RPG-29 (NATO designation: Vampir) is a Russian rocket-propelled grenade (RPG) launcher. Adopted by the Soviet Army in 1989, it was the last RPG to be adopted by the Soviet military before the fall of the Soviet Union in 1991. The RPG-29 has since been supplemented by other rocket-propelled systems, such as the RPG-30 and RPG-32. The RPG-29's PG-29V tandem-charge warhead is one of the few anti-tank weapons that can reportedly penetrate the frontal hulls of Western composite-armored main battle tanks.
The RPO-A Shmel (Russian: РПО-А Шмель, tr. Rocket-propelled Infantry Flamethrower-A Bumblebee) is a man-portable rocket launcher, although it is classified as a flamethrower (Russian Реактивный Пехотный Огнемет / Reaktivnyy Pekhotnyy Ognemet) by the manufacturer, KBP, Tula.