Estar may refer to:Estar, West Virginia, unincorporated community in West Virginia, United States Estar Avia, passenger charter airline based in Russia eSTAR project, multi-agent system that aims to implement a true heterogeneous network of robotic telescopes for automated observing Navistar eStar, electric van by Navistar International One of the Romance copula forms ESTAR Base, the Eastman Kodak brand of BOPET film