Jose J. Leido Jr. Memorial National High School
 The Jose J. Leido Jr. Memorial National High School or Lemnahis (short for Leido Memorial National High School) and formerly Oriental Mindoro High School is the flagship campus and the largest Public High School in Oriental Mindoro. It was established in 1921 and is located in San Vicente East Calapan City in Oriental Mindoro. It offers high school education from first year to fourth year. The school is headed by Dr. Nimrod Bantigue.