St. Joseph's Anglo-Chinese School (Chinese: 聖若瑟英文中學; often abbreviated as SJACS) is an aided boys' secondary school in Kwun Tong District, Hong Kong. Founded in 1958 by Rev. Bro. Paul Sun, it was the first secondary school located in Kwun Tong. It is a Catholic school affiliated with the Diocese of Hong Kong. The patron saint of the school is Saint Joseph, and the school anniversary day is 19 March, the feast of St. Joseph.