Assumption College (Thai: โรงเรียนอัสสัมชัญ) (Sometimes called "Assumption Bang Rak", "Assumption College Bangkok", "อ ส ช" ) is a private Catholic all boy school located in Bangkok, Thailand. The school was founded by Rev. Father Emile August Colombet in 16 February 1885, is the first school founded by the Gabrielite Brothers in Thailand.