Nantwich Grammar School, later known as Nantwich and Acton Grammar School, is a former grammar school for girls and boys in Nantwich, Cheshire, England. It now forms part of the mixed comprehensive school, Malbank School and Sixth Form College. The school moved to a new, larger building at the end of Welsh Row in 1921. In 1977, the school became comprehensive and was renamed Malbank School and Sixth Form College.