Dartford Grammar School is a secondary foundation school for boys in Dartford, Kent, England, which admits girls to its sixth form. All of the students joining the school are considered to be from the top 25% of the ability range, as determined by the 11-Plus examinations. The students come from Dartford, neighbouring towns and villages, and nearby London boroughs, as well as an increasing number of students from Essex. The current roll is 1,203, including 461 in the sixth form. It is the brother school of Dartford Grammar School for Girls.