NNHS

NNHS may refer to:
 * Newport News High School, Newport News, Virginia, United States
 * Naperville North High School, Naperville, Illinois, United States
 * Navotas National High School, Navotas, Philippines
 * Newton North High School, Newton, Massachusetts, United States
 * Niles North High School, Skokie, Illinois, United States
 * Northern Nash High School, Rocky Mount, North Carolina, United States