Plaistow County Grammar School
 Plaistow County Grammar School also known as Plaistow Grammar or PGS was a local authority mixed gender Grammar school established in 1945 and located on Prince Regent Lane (A112) in Plaistow in the County Borough of West Ham and then the London Borough of Newham in east London. It was disestablished in 1972 upon its merging to create a Comprehensive school.