Chatham Grammar School for Boys (now Holcombe Grammar School) is a grammar school with academy status in Chatham, Kent, England. It is a selective school; however, the sixth form is comprehensive. From the 2017-18 academic year, the school expected to become co-educational and remain selective in the lower school, however this was blocked by the Department for Education. The school has changed name in advance of becoming co-educational and plans to change all references from "Chatham Grammar School for Boys" to "Holcombe Grammar School" over academic year 2016/17.