LTHS

LTHS or Lths may refer to:


 * Lepanthes, a genus of orchids abbreviated by horticulturists as "Lths"

High Schools
 * Lacey Township High School, Lacey Township, New Jersey, USA
 * Lackawanna Trail High School, Factoryville, Pennsylvania, USA
 * Lake Travis High School, unincorporated Travis County, Texas, USA
 * Lockport Township High School, Lockport, Illinois, USA
 * Lokmanya Tilak High School, Tilak Nagar, Chembur, Mumbai, India
 * Lyons Township High School, La Grange, Illinois, USA
 * Lebanon Trail High School, Frisco, Texas USA