Cagayan National High School, abbreviated as CNHS and locally known as Cagayan High (), is the universal high school of Region 2. It is located in Taft Street, Tuguegarao City, Cagayan, Philippines. Established in 1905, it is the oldest public secondary level school in Cagayan and the province's premier secondary school. The school, which is administered by the Department of Education, has around 5,000 students. Its campus is fenced and gated, although some buildings outside the walls of the school are being used because of the great number of students. This is the biggest secondary school in Cagayan Valley. Cagayan National High School was nationalized, from Cagayan High School, by virtue of Presidential Decree 1050 on July 1, 1976. Cagayan National High School, like standard Public National High Schools in the Philippines, section their students according to the entrance exam scores taken before the students' first year. Students who identify themselves as (1) a passer of the Philippine Science High School National Competitive Examination (PSHS-NCE) or (2) an elementary school class valedictorian is exempted in taking the entrance exam but are required to submit proofs for validation. History With the Thomasites as organizers, the Cagayan High School was formally opened in June 1905 with Albrow S. Burnell as its first principal. It was housed in Otto Weber's residence which was later on bought by the government for its first school building. The school was situated on 16.5 hectares of land which was purchased by the provincial board of Cagayan under Governor Gracio Gonzaga. Meanwhile, to solve the problem on teacher shortage, the school, which was at the same time a teacher training institution, offered Domestic Science in 1918 and a Secondary Normal Course in 1921. Then in February 1922, District Engineer Salesby laid the cornerstone of the new Cagayan High School building at its present site which was completed and inaugurated after a year. After more than two decades, the American line-up of school administrators ended and Demetrio M. Andres, a native of Marikina, became the first Filipino principal of the school in 1931. During his term, post-graduate normal course was opened to meet the demand for elementary school teachers. However, in March 1937, the last group of secondary normal senior students graduated and for the first time, two valedictorians were proclaimed - one for the general course and one for the normal course. Due to the outbreak of World