AP1 or AP-1 may refer to:
Biology
*
Activator protein 1, dimeric transcription factor
*
Adaptor protein 1, tetrameric clathrin-associated complex
Transportation
*
Autopista AP-1
The Autopista AP-1 (also known in Spanish as ''Autopista del Norte'') is a Spanish '' autopista''. It has two separate sections: the first from Burgos to Armiñón, and the second from Etxabarri Ibiña (a hamlet close to Vitoria-Gasteiz) to Eib ...
, a Spanish motorway
*
Caproni A.P.1, a 1934 Italian attack aircraft monoplane
*
USS ''Henderson'' (AP-1)
Other uses
*
Protocol I, or AP 1, a 1977 amendment to the Geneva Conventions
See also
*
API (disambiguation)
An API, or application programming interface, is any defined inter-program interface.
API or api may also refer to:
Companies and organizations
* Academic Programs International, an American study-abroad provider
* American Petroleum Instit ...
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