Green star may refer to:One of the Esperanto symbols, the green star, or verda stelo Green Star (Australia), an environmental rating system for buildings in Australia Green Star Express, a bus company in the Philippines Green Star Media, a British publishing company Green Star Line, an American shipping line of 1919–1923 Green Star Series, five science fantasy novels by Lin Carter Sto-Oa, a fictional star that lies at the center of the DC Comics universe Michelin Green Star, an award for restaurants with sustainable practices.