St. John's College, started in 1915 and is the only boys' school in Nugegoda, Sri Lanka.

There was a Tamil stream as well but the classes were initially at the boys' school and then transferred to a building adjacent to the church.

In 1963 under the government re-organisation of schools, all English medium classes were transferred to St Joseph's Convent.

The Cyril Herath Memorial trophy (Johnian of the Year) is awarded to the best overall student in the school.

One of the first students, Ossie Abeyratne, became the first Dean of the Faculty of Medicine at the University of Colombo[2] and another, Cyril Herath, the 22nd Inspector General of Police.