St Stephen's Girls' College (SSGC) () is a grant school in Hong Kong under the Hong Kong Sheng Kung Hui (Anglican Church). Established in 1906, SSGC is a top girls' school and among the oldest schools in Hong Kong. It is managed by the St. Stephen's Girls' College School Council.
The school first opened in 1906. The first principal was Miss Carden. Originally on Caine Road, the school moved to its current location at Lyttelton Road, Mid-Levels, in 1923. It has a history of voluntary social service and involvement in charitable work going back to 1920.
In 2001, the school was one of a group of "traditional élite schools" criticised by the then Secretary of Education and Manpower Fanny Law for what she saw as reliance on rote teaching. Staff from the school defended it.
The Main Building of St. Stephen's Girls' College has been listed as a declared monument of Hong Kong since 1992.