NTHS

NTHS may refer to:
 * National Technical Honor Society, an American honor society
 * National Trunk Highway System, a system of expressways in China

Schools

 * Kaohsiung Municipal Nanzih Comprehensive Senior High School, Kaohsiung, Taiwan
 * National Trail High School, New Paris, Ohio, United States
 * New Town High School (Maryland), Owings Mills, Maryland, United States
 * New Town High School (Tasmania), New Town, Tasmania, Australia
 * New Trier High School, Winnetka, Illinois, United States
 * North Tonawanda High School, North Tonawanda, New York, United States
 * North Tahoe High School, Tahoe City, California, United States
 * North Thurston High School, Lacey, Washington, United States