WHT

WHT may stand for:


 * Walsh–Hadamard transform
 * Westmoreland Heritage Trail, a rail trail in Pennsylvania
 * Whitchurch railway station (Wales), Cardiff, Wales (National Rail station code)
 * White coat hypertension, the phenomenon where people exhibit hypertension in a clinical setting, although they do not exhibit it in other settings
 * William Herschel Telescope, a 4.20 m telescope located on the island of La Palma
 * William Howard Taft (1857–1930), 27th president and 10th chief justice of the United States
 * Withholding tax, a tax deducted at the source
 * Wometco Home Theater, a short-lived over-the-air subscription television service
 * World Harvest Television, a channel from television network Family Broadcasting Corporation