GBARAINOWEI GRAMMAR SCHOOL OKOLOBIRI is a public secondary school located in Okolobiri in Yenagoa Local Government Area of Bayelsa State, Nigeria; the services offered include day senior secondary education, and the school activities include comprehensive academic instruction and community-oriented programs, with the school having been in existence since 1973 and continuing to provide secondary education for learners from Okolobiri and surrounding communities. (Sector:PUBLIC; Level Offered:SSS ONLY; School Code:6081405)