St. Thomas College (Sinhala: ශාන්ත තෝමස් විද්‍යාලය) is a Catholic school in Kotte, Sri Lanka.

[3] The new school was set up in the small verandah of the mission house, Debrera's residence.

The school colours are scarlet, representing the love of work and sacrifice in the hearts of the pupils, white for the purity in their lives, and gold for perfection and success.

[5] St Thomas' plays its annual Big Match, the Battle of Kotte, against Sri Jayawardenepura Maha Vidyalaya.

[6] The first Battle of Kotte was held in 1975 and has occurred on a regular basis for over forty years.