ETB may refer to:
Technology ETB (company), a Colombian telecommunications company Electric trolley bus Electronic throttle body, in vehicles End-of-Transmission-Block character, in computing Engineering and Technology Board, now EngineeringUK, a UK organisation that promotes engineering Ethernet Train Backbone, a train communication network
Other uses Education and Training Board, a public body in Ireland Elite Trainer Box, a booster box for the Pokémon trading card came Endothelin B receptor, a protein Equitorial Trust Bank, a Nigerian commercial bank Etebi language of Nigeria Ethiopian birr, the currency of Ethiopia Euskal Telebista, a television network in the Basque Autonomous Community