KNHS

KNHS may refer to:


 * Koninklijke Nederlandsche Hoogovens en Staalfabrieken, Netherlands based steelmaker
 * Keystone National High School
 * KNHS-LP, a low-power radio station (93.1 FM) licensed to serve Lafayette, Louisiana, United States
 * KNHS (California), a former high school radio station in Torrance, California, United States; a defunct radio station
 * Kingsgrove North High School, a high school in Sydney, Australia
 * (KNHS), Dutch National Equestrian Federation