"OPO" or "Opo" can refer to: OnePlus One, a smartphone model produced by the Chinese company OnePlus. Optical parametric oscillator. Francisco de Sá Carneiro Airport, known by IATA code OPO. Organ procurement organization, which helps to arrange organ donation. One-person operation in transport, where a driver of a vehicle has sole responsibility for operating the vehicle. Lagenaria siceraria, a squash commonly known as opo. Opo the Dolphin, a famous dolphin in New Zealand. Online Presence Ontology. Orlando Philharmonic Orchestra. Orlando Pops Orchestra. Ovamboland People's Organization.
https://en.wikipedia.org/wiki/OPO