Ecojet or EcoJet may refer to:
EcoJet (airline), a Bolivian domestic airline. Ecojet (British airline), a failed British airline. Frigate Ecojet, a Russian program for the development of a new wide-body medium-haul civil aircraft. EcoJet concept car, a concept car produced by General Motors. EcoJet, a low emissions version of the Multijet engine introduced in the 2016 facelift of the third generation Fiat Fiorino.