Diadi National High School
is a public high school located at the municipality of Diadi, Nueva Vizcaya.
The school came into existence in 1980 as per the enactment of Batas Pambansa Blg. 96, which orders the creation of a national high school in the municipality.
Currently, the school has a K-12 curriculum
with an Academic track
. Under this track is a strand in ABM,
primarily offered to students who are looking to take up a career, or a path in business and entrepreneurship.