Thurstan College (Sinhala: තර්ස්ටන් විද්‍යාලය) is a national school for boys in Colombo, Western Province, Sri Lanka, providing primary and secondary education.

In 1859, A. J. Thurstan, an Anglican missionary and priest, founded a private technical-school that taught agricultural and craft skills.

In 1884, with the assistance of the British government, an agricultural school to promote the cinnamon industry was founded in the same location.

He introduced a house system for sports, prefects (student leadership), cadets, Scouts and literary associations.

In the early 1950s the lower kindergarten and primary classes were gradually abolished in order to begin a high school and prepare students for matriculation.

He retired in 1959 and asked that, following his death, his remains be donated to the school to provide a skeleton for anatomical study.

He revitalised the parent-teacher association and oversaw expansions including a shrine room (later demolished), a two-story science block, a hall and an office complex.

Perera used philanthropic donations and grants to build a science block, a computer laboratory, and a sports ground with a scoreboard and giant clock.

Using philanthropic funds, he built the Kumar Dewapura block, a three-storey library and a 25-metre (82 ft) swimming pool.

Principal Schokman named the houses after the four directors of education during British rule: Alumni of Thurstan College are known as Old Thurstanites.

[6][7] Notable alumni from the school include: Air Vice Marshal Thurstan's under-16s cricket team was formed in 1953.

Thurstan plays against Isipathana College in an annual cricket-encounter, called Big Match or Battle of the Brothers,[8] at the beginning of the school cricket season.