OPP

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

Miscellaneous other organizations

 * Omega Psi Phi, an international fraternity
 * One People's Project, an anti-racist group
 * Opp (newspaper), published in Oppdal, Norway
 * Open Prosthetics Project, a project dedicated to creation of public domain prosthetics
 * Orangi Pilot Project, a development project in slums of Karachi, Pakistan

Science and technology

 * Object Push Profile, a Bluetooth communications protocol based on the OBEX protocol
 * Octonionic projective plane, or Cayley plane, a projective plane over the octonions
 * Oriented polypropylene, and specifically BOPP (biaxially oriented PP), a polymer used mainly for packaging and labeling
 * Ortho-phenylphenol, or 2-phenylphenol, an organic compound used as a fungicide
 * Ovine progressive pneumonia, or ovine lentivirus, a chronic infection of Visna virus that affects sheep
 * Yamaha YM2164, an FM synthesis sound chip also called FM Operator Type P (OPP)

Songs

 * "O.P.P." (song), a song by Naughty by Nature from the album Naughty by Nature
 * "Opps", a song by Vince Staples and Yugen Blakrok from Black Panther: The Album