HWP

HWP may refer to:

Science and technology

 * Half-wave plate, an optical device
 * Hangul (word processor), Korean software
 * Hardy–Weinberg principle, in population genetics

Other uses

 * Heavy weapons platoon
 * Highland Wildlife Park, in Scotland
 * Human Waste Project, an American band
 * Hutchison Whampoa Property, a property developer in Hong Kong