Rochester Grammar School (known as Rochester Grammar School for Girls until 2006) often abbreviated to RGS is a grammar school for the education of girls between the ages of 11 and 18. It has academy status. It is now known as just "Rochester Grammar School" following the introduction of boys into the sixth form. Rochester Grammar School is located on Rochester Maidstone Road, opposite the Sir Joseph Williamson's Mathematical School. Their sixth form is mixed but the rest of the school is single-sex.