OPP, O.P.P., or Opp may refer to:
==Government== NASA's Office of Planetary Protection One Police Plaza (1PP), the Police headquarters in New York City Ontario Provincial Police, the provincial police service of Ontario, Canada Opp, Alabama, a city in the United States Orleans Parish Prison, prison located in New Orleans, United States
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).