OPP

Template:Sister project OPP, O.P.P., or Opp may refer to:

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Government

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

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)

"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