OPS may refer to:

• Obscene Publications Squad, a former unit of the Metropolitan Police in London, England
• Oceanic Preservation Society
• Office of Public Safety, a former US government agency
• Orchestre philharmonique de Strasbourg
• Ottawa Police Service
• Oulun Palloseura, a Finnish sports club

• Old Pension Scheme, a pension scheme in India
• Online portfolio selection portfolio management for Stock market
• O. Panneerselvam, former chief minister of Tamil Nadu, India
• Optical position sensor, a position sensitive device
• Off-premises station, a telephone extension located off-site
• On-base plus slugging, a baseball statistic
• Open Pluggable Specification
• Oriented polystyrene
• Orthogonal polarization spectral imaging
• Open Publication Structure, a specification for e-books in EPUB format
• OPS-301, Operationen- und Prozedurenschlüssel, German healthcare procedure classification
• Orange Pekoe Superior, a tea leaf grade

• OP (disambiguation)
• OOPS (disambiguation)
• OPPS (disambiguation)
• Ops (disambiguation)