Naogaon K.D. Government High School () is a public secondary school in Naogaon, Bangladesh. It was established in 1884.
Krishnadhan High School was established in 1884 by Babu Krishnadhan, the deputy collector of Naogaon and supervisor of the Ganja Society. The school was housed at first in a hay barn south of the present school building. Later, as a higher English school, it was known as Naogaon K. D. H. E. High School.
Funds raised in connection with the coronation of Emperor George V in 1911 helped construct a single-storey "H"-shaped brick school building.
The police took over the school's two-storied hostel in 1956, creating a severe shortage of student accommodation. In 1969, the school's managing committee donated the hostel, still occupied by the police, to a proposed girls' college. Meanwhile, the auditorium was built in 1961 with a government grant.
The school was provincialised in March 1970, becoming Naogaon K. D. Government High School.