P5 may refer to:

In science and technology

* 311P/PANSTARRS, also known as P/2013 P5 (PANSTARRS), an asteroid discovered by the Pan-STARRS telescope on 27 August 2013 * P5 Truss Segment, an element of the International Space Station *

Period 5 The periodic table is laid out in rows to illustrate recurring (periodic) trends in the chemical behaviour of the elements as their atomic number increases: a new row is begun when chemical behaviour begins to repeat, meaning that elements with si ...

of the periodic table of elements * Styx (moon), the fifth moon of the dwarf planet Pluto * Particle Physics Project Prioritization Panel, a scientific funding advisory group in the United States

Vehicles

P-5 Hawk The P-1 Hawk (Curtiss Model 34) was a 1920s open-cockpit biplane fighter aircraft of the United States Army Air Corps. An earlier variant of the same aircraft had been designated PW-8 prior to 1925."US Military Aircraft Designations & Serials 1 ...

, a 1923 aircraft * Martin P5M Marlin, a flying boat *

Rover P5 The Rover P5 series are large saloon and coupé automobiles that were produced by Rover from 1958 until 1973. The models were marketed under the names Rover 3 Litre, Rover 3.5 Litre and Rover 3½ Litre. The P5 was a larger car than the P4 w ...

(commonly called 3-Litre and 3½ Litre), a group of automobiles produced from 1958–1973 *

Palatine P 5 A palatine or palatinus (in Latin; plural ''palatini''; cf. derivative spellings below) is a high-level official attached to imperial or royal courts in Europe since Roman Empire, Roman times.

, a 1908 locomotive *

PRR P5 The Pennsylvania Railroad's class P5 comprised 92 mixed-traffic electric locomotives constructed 1931–1935 by the PRR, Westinghouse and General Electric. Although the original intention was that they work many passenger trains, the success of t ...

, mixed-traffic electric locomotives constructed 1931–1935 * Protegé5, a 5-door sport-wagon produced by Mazda from 2002–2003 * Polikarpov P-5, Soviet passenger aircraft, modification of the R-5

In computing

* P5 Glove, an input device for human-computer interaction * P5 (microarchitecture), a fifth-generation central processing unit introduced in 1993 *

System p5 The IBM System p is a high-end line of RISC (Power)/UNIX-based servers. It was the successor of the RS/6000 line, and predecessor of the IBM Power Systems server series. History The previous RS/6000 line was originally a line of workstations and ...

, a family of servers and workstations created by IBM in 2005 *

p5.js Processing is a free graphical library and integrated development environment (IDE) built for the electronic arts, new media art, and visual design communities with the purpose of teaching non-programmers the fundamentals of computer programming ...

is the JavaScript port of

Processing Processing is a free graphical library and integrated development environment (IDE) built for the electronic arts, new media art, and visual design communities with the purpose of teaching non-programmers the fundamentals of computer programming ...

* Perl, version 5

Weapons

* P-5 Pyatyorka, a 1959 anti-shipping missile of the Soviet Union * Walther P5, a pistol made by German arms maker Walther in the 1970s

In arts and entertainment

* P5 (comics), a comic strip also known as Class Act, in the UK comic The Dandy * '' Persona 5'', a 2016 video game from Atlus

In music

Perfect fifth In music theory, a perfect fifth is the Interval (music), musical interval corresponding to a pair of pitch (music), pitches with a frequency ratio of 3:2, or very nearly so. In classical music from Western culture, a fifth is the interval fro ...

, a music interval * Pizzicato Five, a Shibuya-kei group

Other uses

* Copa Airlines Colombia (formerly AeroRepublica), IATA airline code P5 * The five permanent members of the United Nations Security Council ** P5+1, the five permanent members of the UN Security Council plus Germany *

Norrbotten Armoured Battalion The Norrbotten Armoured Battalion ( sv, Norrbottens pansarbataljon), designation Pbat/I 19 or P 5, is a Swedish Army armoured battalion, one of the few new formations raised in the 20th century. It is still in active service, and is currently gar ...

, designated P 5, a Swedish Army armored battalion active since 1957 * Power Five conferences, in American college football {{Letter-Number Combination Disambiguation