PSCI may refer to:
Park Street Collegiate Institute, a former high school in Orillia, Ontario, Canada Penn State Cancer Institute, US PowerShares S&P SmallCap Industrials Portfolio (NASDAQ: PSCI), in Invesco PowerShares PSCI, owner of PSC-Naval Dockyard, Malaysia The Power State Coordination Interface, used for power management in the ARM architecture
See also Pisces I (Psc I) a galaxy Iota Piscium (ι Psc) a star