​The Nigerian Navy Secondary School Abeokuta, was founded on 2 February 1991 and is sited at the former St Leo’s Teachers College at Ibara Abeokuta, Ogun State. At the handing over ceremony of the school, the  then Military Governor of Ogun State, Navy Captain Oladeinde Joseph, commended the Nigerian Navy for bringing a model secondary school to  Abeokuta.

The then Chief of the Naval Staff, Vice Admiral Murtala Nyako implored the School to train the children to excel in all aspects of life. He emphasized that the Nigerian Navy Secondary School Abeokuta, although  a civil secondary school, should be seen as the Nigerian Navy’s equivalent  of a military school. The School which sits on about 35 hectares of land at     Ibara, Abeokuta, is the only NN secondary school that is all boys boarding school.  The affairs of the School have been piloted by Commandants since inception. The pioneer commandant was Cdre SEA Olamilokun retired, a one time Director of Naval Education. Other past directors who had also headed the School include Cdre IO Owo-Onu, Cdre OO Olawumi, Cdre DT Hinga, Cdre IM Mankilik and Cdre MA Adetunji.