Caulfield Grammar School is an independent, co-educational, Anglican, day and boarding school, located in Melbourne, Victoria, Australia. Founded in 1881 as a boys' school, Caulfield began admitting girls exactly one hundred years later. The school amalgamated with Malvern Memorial Grammar School (MMGS) in 1961, with the MMGS campus becoming Malvern Campus.
Caulfield has three day campuses in Victoria, Caulfield (Years 7–12), Wheelers Hill (Kindergarten–Year 12), and Malvern House (Kindergarten–Year 6). It has an outdoor education campus at Yarra Junction, and a student centre in Nanjing, China where the Year 9 internationalism programme is conducted. Caulfield is the only Melbourne-based APS school to provide boarding for both boys and girls, with 95 boarding students, and is the second largest school in Victoria, currently catering for approximately 2,800 students.