PMO

PMO may refer to:

Government and military

 * Polish Military Organisation, an intelligence and sabotage group during World War I
 * Prime Minister's Office (disambiguation), government departments in several countries
 * Principal Medical Officer, a senior position
 * Priority Material Office, a logistics support command of the United States Navy

Science

 * Periodic mesoporous organosilica, a type of silica containing organic groups
 * Phosphorodiamidate morpholino oligo, a type of molecule in molecular biology
 * Planetary-mass object, a celestial object of size similar to a planet
 * Prosopometamorphopsia, visual disorder

Other uses

 * Falcone Borsellino Airport (IATA Airport Code), Italy
 * Pine Mountain Observatory, an astronomical observatory in Oregon, US
 * Project management office, a standards group within an organisation