Fop is a pejorative term for a foolish man. FOP or fop may also refer to: Science and technology Feature-oriented positioning, in scanning microscopy Feature-oriented programming, in computer science, software product lines Fibrodysplasia ossificans progressiva, a connective tissue disease which can result in muscles fusing into bone Formatting Objects Processor, a Java application fop herbicides, the aryloxyphenoxypropionate subtype of ACCase inhibitors Other uses The Fairly OddParents, an American television series Fellowship of Presbyterians, now The Fellowship Community, a Christian movement in the United States Festival of Praise, a music festival in Singapore Flowery orange pekoe, a grade of tea leaf Fop Smit (1777–1866), Dutch naval architect and shipbuilder Fraternal Order of Police, an American police organization Fred. Olsen Production, a Norwegian gas and oil company Freedom of panorama, a concept in copyright law Morris Army Airfield, in Georgia, United States FOP grade tea Federation of Planets, from Star Trek