PSB may refer to: Organisations Belgian Socialist Party () Brazilian Socialist Party () Parti Sarawak Bersatu Brunei History Centre (), a government body in Brunei Pacific Symposium on Biocomputing, an annual scientific meeting Paris School of Business, a private business school located in Paris Penn State Behrend, a commonwealth Pennsylvania State University campus in Erie, PA. Philippine Savings Bank Presidential Service Badge of the US military PSB Research, a market research firm (Penn Schoen Berland) PS Business Parks, American real estate investment trust (NYSE: PSB) Psychological Strategy Board, a U.S. government committee to coordinate psychological warfare Public Schools Branch, the English school district of Prince Edward Island, Canada Public Schools of Brookline, a school district of Brookline, Massachusetts, United States Public Security Bureau, the name for a police department in Mainland China Punjab & Sind Bank, Northern India (NSE: PSB) United Sarawak Party, (), a political party in Sarawak, Malaysia Science and medicine Phosphate solubilizing bacteria Photosynthetic bacteria Protected specimen brush Persistent slip bands Purple sulfur bacteria Technology Adobe Photoshop Big (.PSB), a file format Polysulfide bromide battery Proton Synchrotron Booster, a synchrotron at CERN Music PSB Speakers, a Canadian loudspeaker company Public Service Broadcasting (band), a British electronic trio Pet Shop Boys, an English musical duo Plus-Tech Squeeze Box, a Japanese Shibuya-kei band Other Psychological Strategy Board, a committee set up by the Truman administration to coordinate and plan psychological operations Poplar Street Bridge, a bridge across the Mississippi River Mid-State Regional Airport (IATA airport code "PSB"), an airport in Philipsburg, Pennsylvania Polski Słownik Biograficzny, a Polish encyclopedia Public service broadcasting in the United Kingdom Purple sprouting broccoli, a variety of broccoli