First-Year Outdoor Program, a wilderness orientation program for Harvard College freshmen

Factors of production, in economics

Fibrodysplasia ossificans progressiva, a rare connective tissue disease

Flowery Orange Pekoe tea

The three-letter acronym FOP may refer to:

Fred Olsen Production, a gas and oil production company

Feature-oriented positioning

FOP, or Formatting Objects Processor, an XSL-FO processor

The Fairly OddParents, a television series on Nickelodeon

Fraternal Order of Police, an organization of police officers