WP or wp may refer to:

Organisations

Warsaw Pact The Warsaw Pact (WP) or Treaty of Warsaw, formally the Treaty of Friendship, Cooperation and Mutual Assistance, was a collective defense treaty signed in Warsaw, Poland, between the Soviet Union and seven other Eastern Bloc socialist repub ...

, 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) The Workers' Party (abbreviation: WP) is a major centre-left political party in Singapore and is one of the three contemporary political parties represented in Parliament, alongside the governing People's Action Party (PAP) and opposition Prog ...

, a political party * Workers Party (United States), a defunct political party

Science and technology

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

Computing

* Weakest precondition (''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 (reporting mark), a former American railroad * Island Air (Hawaii) (IATA code), an airline

Other uses