WP or wp may refer to:

Organisations

* Warsaw Pact, a disbanded organization of Central and Eastern European communist states * , the Reich Party of the German Middle Class, a political party of Weimar Germany * , the Polish Armed Forces * Workers' Party (Singapore), a political party *

Workers Party (United States) The Workers Party (WP) was a Third Camp Trotskyist group in the United States. It was founded in April 1940 by members of the Socialist Workers Party who opposed the Soviet invasion of Finland and Leon Trotsky's belief that the USSR under Josep ...

, a defunct political party

Science and technology

Watt-peak The nominal power is the nameplate capacity of photovoltaic (PV) devices, such as solar cells, modules and systems, and is determined by measuring the electric current and voltage in a circuit, while varying the resistance under precisely define ...

(W_p), the nominal power of a photovoltaic * Wilting point, in soil moisture determination

Computing

Weakest precondition Weakness is a symptom of a number of different conditions. The causes are many and can be divided into conditions that have true or perceived muscle weakness. True muscle weakness is a primary symptom of a variety of skeletal muscle diseases, i ...

(''wp''), in computer science * Windows Phone, a smartphone operating system * WordPerfect, a word processor * Word processor, software used for the production of printable material * WordPress (wp.org), a content management system

Websites

* Wikipedia, an online encyclopedia * Wirtualna Polska, a Polish web portal * WordPress.com, a blog hosting provider powered by WordPress

Transportation

* Indian locomotive class WP *

Western Pacific Railroad The Western Pacific Railroad was a Class I railroad in the United States. It was formed in 1903 as an attempt to break the near-monopoly the Southern Pacific Railroad had on rail service into northern California. WP's Feather River Route dire ...

(reporting mark), a former American railroad *

Island Air (Hawaii) Island Air (officially Hawaii Island Air) was a commuter airline based in Honolulu, Hawaii. It operated scheduled inter-island passenger services in Hawaii. Its main base was the Daniel K. Inouye International Airport on Oahu. The airline mai ...

(IATA code), an airline

Other uses

* WP (Polish TV channel), a television channel owned by Wirtualna Polska Holding *

White phosphorus munitions White phosphorus munitions are weapons that use one of the common allotropes of the chemical element phosphorus. White phosphorus is used in smoke, illumination, and incendiary munitions, and is commonly the burning element of tracer ammun ...