SPSP is a four-letter initialism that may refer to: Single-pair shortest path, in approaches to the shortest path problem Society for Personality and Social Psychology, an academic society for psychologists Sony PlayStation Portable, a handheld game console Strong pseudoprime, a class of pseudoprime São Paulo, São Paulo (city, state; analogous to New York, New York) Sas Plus/Sas Pussy, EP by Karpe