Apo

Apo or APO may refer to:

• African Press Organization
• Acting Pilot Officer, the lowest commissioned grade in the Royal Air Force
• Acute Pulmomary Oedema, fluid accumulation on the lungs
• African Political Organization, a Coloured political organization in early twentieth century South Africa
• Alpha Phi Omega, a U.S. service fraternity
• Alpha Psi Omega, a U.S. honors theatre society
• Apo, a god of mountains in Inca mythology
• Serok Apo or Abdullah Öcalan, Kurdistan Workers Party leader
• Apochromat, a type of photographic or other lens
• Apoprotein, a protein without its bound cofactor
• Apotex, Canadian pharmaceutical company, producer of generic drugs
• Application Performance Optimization
• Army Post Office: chiefly U.S. Army and U.S. Air Force postal services. Also See military mail
• Association for Professional Observers, an association of fisheries observers
• Außerparlamentarische Opposition, a political protest movement in West Germany during the 1960s and 1970s
• Authorized Personnel Only, a fictional black ops unit on Alias
• After Peak Oil, an epoch used in dating years following the estimated Peak of Global Oil Production