APN may refer to:

Biology and chemistry

* 3-Arylpropiolonitriles, a class of chemical reagents * Acute pyelonephritis, a urinary tract infection * Acyl peroxy nitrates, respiratory and eye irritants in photochemical smog

Computing

* Access Point Name, a gateway between mobile networks and frequently the Internet * Application-Layer Protocol Negotiation * Algebraic Petri net, a kind of Petri net in computer science * Amazon Partner Network, for Amazon Web Services

Journalism

* APN News & Media, an Australian and New Zealand media company * Animal Planet (Australia and New Zealand), a television channel * Novosti Press Agency (Agentstvo pechati Novosti), a Soviet news agency operating 1961–1990

Organizations

* African Parks Network, a private park management institution * Alberta Playwrights Network, a professional association in Canada * Americans for Peace Now, a group associated with the Israeli Peace Now movement * Asia-Pacific Network for Global Change Research, in Kobe, Japan

Other

* Advanced practice nurse, a nurse with post-graduate education in nursing * Alpena County Regional Airport (IATA airport code) in Michigan * Assessor's parcel number, to identify real property {{disambiguation