AP

AP may refer to:

• Andhra Pradesh, A state in the Republic of India
• Associated Press, an American news agency
• AP, the United States postal abbreviation for U.S. military personnel in the Pacific Ocean region
• AP, the U.S. Navy hull classification symbol for transport support ships
• A&P, the common name of The Great Atlantic and Pacific Tea Company
• The IATA code for Air One
• Access point, a device that connects wireless communication devices together to form a wireless network
• Acción Popular, a conservative liberal political party in Peru
• Accounts payable, one of a series of accounting transactions covering payments to suppliers
• Acetone peroxide, an explosive
• Action potential, a "spike" of electrical discharge that travels along the membrane of a cell
• Action point, a point-system used notably in video games.
• Advanced Placement, a program that offers college level courses at high schools across the United States and Canada
• Aeroklub Polski, the Polish central association of persons practising air sports or recreational flying
• Allied Press, a major New Zealand newspaper company
• Alternative Press (music magazine), a music magazine
• Ahriman's Prophecy, a freeware adventure game
• Amiga Power, a defunct monthly computer magazine about Amiga computer games
• Andean Pact, a South American trade agreement
• Andhra Pradesh, a state in southern India
• Ang Pamantasan, the official student paper of Pamantasan ng Lungsod ng Maynila
• Applied physics, physics which is intended for a particular technological or practical use
• Application Provider
• Arithmetic progression, a sequence of numbers, each differing from its predecessor by a fixed quantity
• Armenian Power, an Armenian-American gang located in Los Angeles
• Armor-piercing, a type of ammunition designed to penetrate armour and detonate
• Asian pride, a slogan used by people of Asian descent who live outside the continent
• Asia-Pacific, the term for littoral East Asia, South East Asia and Australasia near the Pacific Ocean, plus the states in the ocean itself
• Assistant principal, the assistant chief administrator in a school
• Attachment parenting, a parenting philosophy
• Au pair, a young person living on an equal basis with a host family in a foreign country

Ap may also refer to:

• ap, a Welsh patronym
• Ap (water), the Vedic Sanskrit term for water