IAP

IAP may refer to:

Medicine

 * Intra-abdominal pressure

Organizations

 * Adventist Church of Promise (Portuguese: Igreja Adventista da Promessa), evangelical Christian church based in Brazil
 * Fraunhofer Institute for Applied Polymer Research, a German institute operated by the Fraunhofer Society
 * Independent American Party of Nevada, the Nevada Constitution Party affiliate
 * Information Age Publishing, American academic publisher in Charlotte, North Carolina
 * Institut d'astrophysique de Paris (Paris Astrophysical Institute), a French scientific organization
 * Institution of Analysts and Programmers, an international institution for professions involved in the analysis, development and testing of software
 * Integrated Applications Promotion, a European Space Agency programme for developing applications of space-based technology
 * InterAcademy Panel, an international organization for cooperation of science academies
 * International Academy of Pathology, an international organization dedicated to the advancement of Pathology through educational exchanges worldwide.
 * International Association of Prosecutors, a non-governmental organisation established by the United Nations in 1995
 * Irish Academic Press, independent Irish academic publisher based in Newbridge, County Kildare
 * Islamic Association of Palestine, a defunct Islamic fund-raising organization
 * Italian African Police (Polizia dell'Africa Italiana), the police force of Italian-controlled areas in Africa in 1936-1941

Science and technology

 * Identical ancestors point, a point in time in the past where every living member of a species at that time is either an ancestor to all living of that species or none living
 * Identity-Aware Proxy, part of the Google Cloud Platform, that uses identity and context to guard access to your applications and VMs
 * Imaging atom probe
 * In-app purchase, a way of purchasing virtual goods in mobile applications
 * In-application programming, a way to program computer logic devices while they are being operated by the system
 * Indanylaminopropane, an uncommon psychoactive chemical sometimes compared to MDMA
 * Index of air purity, a measure of air quality
 * Inhibitor of apoptosis, a protein family involved in the suppression of programmed cell death (apoptosis)
 * Integrated automation platform
 * Integrin Associated Protein or CD47 protein
 * Internet access provider, also known as an Internet service provider
 * Intrapartum antibiotic prophylaxis, for Group B streptococcal infection
 * IPTV Application Platform, an IPTV application platform from Ericsson
 * Indoor Air Pollution Indoor air quality
 * Intracisternal A particle, a retrotransposable element subfamily linked to epigenetic variability

Transportation

 * Instrument approach procedure, a published procedure for the final approach for landing at an airport under instrument flight rules
 * International airport

Other uses

 * Independent Activities Period, held at MIT every year immediately after winter vacation
 * The Italian Asphalt & Pavement Company, a former name of the American musical group The Duprees