PTHS

PTHS can refer to:
 * Paducah Tilghman High School
 * Parathyroid hormones
 * Pitt-Hopkins syndrome
 * Port Townsend High School
 * Pontiac Township High School
 * National Pingtung Senior High School
 * Proviso Township High Schools District 209
 * Pths is the abbreviation for the orchid genus Pleurothallis