TDW (disambiguation)

TDW may refer to one of the following:


 * TDW (Gesellschaft für verteidigungstechnische Wirksysteme), a European weapons manufacturer;
 * Three-Day Week, one of several measures introduced in the United Kingdom by the Conservative Government of 1970–1974 to help conserve electricity;
 * The Dark World, a science fantasy novel by Henry Kuttner;
 * Tidewater Inc. (NYSE:TDW), an international petroleum service company;
 * The Daily WTF, a humorous blog on software engineering disasters;
 * Borland Turbo Debugger for Windows 3
 * Tradewind Airport, IATA code TDW