VSP may refer to: V. S. Pritchett (1900–1997), author Valley State Prison in Chowchilla, California Vehicle Sound for Pedestrians, a noise warning system for electric vehicles developed by Nissan Vehicle-specific power, a formalism used in the evaluation of vehicle emissions Vermont State Police Vertical seismic profile (geophysics) Very Serious People, a phrase referring to commentators who retain a respectable reputation despite being consistently wrong about everything, popularized by Paul Krugman Victoria Socialist Party, of Australia Videsha Seva Padakkama, a military decoration in Sri Lanka Virginia State Police Virtual Storage Platform, from Hitachi Data Systems Virtuoso Server Pages; see Virtuoso Universal Server Visakhapatnam Steel Plant Vision Service Plan, a vision insurance company VoIP, service provider Voith Schneider Propeller, a marine propulsion system Voitures sans permis, low-speed vehicles not requiring a driving licence to operate in France Voltage Sensitive Phosphatase, a family of voltage-regulated proteins