ETEC

ETEC may refer to:
 * Enterotoxigenic Escherichia coli, a bacterium
 * Energy Technology Engineering Center, a nuclear engineering complex in California
 * Etec Systems, Inc., a technology company
 * Escadron de transport, d'entrainement et de calibration, a unit of the French Air Force
 * E-TEC II, a car engine
 * ETEC Lauro Gomes, an educational facility located in São Bernardo do Campo, SP, Brazil