Odorgonno Senior High School (Great OSSA): Category, Location, Courses, Photos, Entrance, Uniform

Odorgonno Senior High School is a Ghanaian based senior secondary school. Its motto is Nobis Nitendum est, which is Latin and means Ours is to Strive. As of 2017, it has 2,671 students and 183 staff, including 53 non-teaching staff.

The school was established as a boys’ day school in 1940 on the crest of the Odaw River at Adabraka in the Greater Accra Region by Joseph Thomas Leigh and three other teachers at the Accra High School.


Odorgonno Senior High School is a Category B School and one of the senior high schools in Greater Accra at Aworshie of Ga Central District.


  • Business
  • Agriculture Science
  • Home Economics
  • Visual Arts
  • General Arts
  • General Science




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