Joseph Savall, the school is named in honour of Saint Edmund Campion, a 16th-century English Roman Catholic martyr.

The school is across the street from Cooperage Ground, which is a major soccer stadium in Mumbai, as well as Oval Maidan a city landmark.

The school has over 800 students and offers classes at elementary and secondary levels, ranging from preparatory to grade 10.

[1] Campion School has been taking part in most of the inter-school events organized by the Government, and often has prevailed.

But opposition from tenants delayed occupancy for 5 years, during which time the school was run from a ground floor rented at 45 New Marine Lines.

Conesa, the director of the Technical Institute at St. Xavier's College, Mumbai, served as principal until December 1950.

[7] Also, a student from Campion won the gold medal in a mental abacus contest sponsored by UMCAS.

The shield has three major divisions, each with a different colour background, and a scroll containing the school motto "Joy in Truth".

The names are Gandhi, Raman, Nehru and Tagore and the respective colors are orange, purple, green, and white.

[9] The School Council is a body established to put into practice the aims and objectives of the house system.