TDE

TDE may refer to:
 * Dichlorodiphenyldichloroethane (Tetrachlorodiphenylethane), an insecticide
 * Telefónica de España, London Stock Exchange symbol
 * The Daily Edited, an Australian luxury fashion brand specialising in monogrammable leather goods
 * The Dark Eye, a role-playing game
 * Tidal disruption event, an astronomical phenomenon near a supermassive black hole
 * Top Dawg Entertainment, a record label
 * Total Direct Énergie (cycling team), a UCI Continental Circuits cycling team
 * Transparent data encryption, a technique to encrypt database content
 * Trinity Desktop Environment, an offshoot of the KDE 3.5 desktop environment