The Dalaguete National High School has a total land area of 3.264 hectares donated by the late municipal mayor of Dalaguete, Hon. Conrada Almagro. The said school was conceived and established in 1947 initiated by the late town mayor, Hon. Carlos Almagro, the father of honorable Conrada Almagro.
The following educators had administered Dalaguete NHS, namely: Mr. Simeon Bajarias Sr., Mr. Dacua (OIC), Mr. Miguel Lucero, Mrs. Consolacion K. Redula, Mr. Florencio Libor, Mr. Benigno Bajarias, Mr. Paul Blanco, Mr. Crisanto B. Encluna, Jr., Ms. Lucille C. Estrera, Mr. Ramon M. Cortes (OIC), Mrs. Susie A. Zambrano (Nov. 14, 1994-June 20, 2005), and Mr. Luis C. Carin (June 21, 2005-May 2015).
The Dalaguete National High School previously known as the Dalaguete Provincial High School located at Poblacion, Dalaguete, Cebu which is 84 kilometers southeast of Cebu Provincial Capitol. Presently, the school is administered by Mr. Roger D. Banogbanog, Principal IV and he is assisted by Mr. Emeliano Bustamante, Assistant Principal II with 104 teachers and six (6) non-teaching personnel as of October 07, 2016.