IWS

IWS may refer to:
 * West Houston Airport (IATA code)
 * Individually wrapped slices, in reference to processed cheese
 * Integrated Workstation, developed by Convergent Technologies (Unisys)
 * International Wool Secretariat
 * International Wrestling Syndicate
 * In-water survey, a method of surveying the underwater parts of a floating ship
 * Irish Water Spaniel
 * Steyr IWS 2000, an Austrian semi-automatic rifle