St. John's School is an all-boys' second-cycle Roman Catholic school located at Sekondi in the Western Region of Ghana. The current curriculum falls within the Senior High School system in Ghana, with overall oversight by the Ghana Education Service. Graduates of St. John's School are known as "Old Saints".
St. John's School was founded on January 29, 1952, by Arch bishop William Thomas Porter of the Society of African Missions in response to the government's Accelerated Education policy of 1951. It was founded as a private secondary school and was the first secondary school to be established in the western region. It was named after Rev. John Beenker, the first headmaster of the school. Shortly after assuming the post, Beenker became seriously ill. Rev. Father Donelley served as interim head, and Rev. Father Francis Kwamena Buah was recalled from postgraduate studies at Cork University in Ireland to head the school. The school started with three teachers, F. K. Buah, Donelley, and John Quansah and 47 students in two temporary classrooms.
The students are known as "The Saints" and the past students are known as "Old Saints".
Old Saint Kwesi Kwansa Kennedy, 2018 won the Henry Godson-Afful award of the best performing WASSCE student and was also adjudged the 3rd Best in West Africa 2018 with 8A's