CS Aerostar Bacău

Clubul Sportiv Aerostar Bacău, commonly known as Aerostar Bacău or simply as Aerostar, is a Romanian professional football club from the city of Bacău, Bacău County, currently playing in the Liga III.

Founded in 1977 as Aripile Bacău, "the yellow and blues" are known as the team of the city's aeronautical manufacturing company. After the fall of communism, the country has undergone a series administrative changes, and in the early 1990s the company changed its name to Aerostar, a name which was also adopted by the football club. During the 1993–94 season, the club encountered serious financial problems that led to the exclusion from the Divizia C championship and bankruptcy. In the summer of 1995, the side was refounded with the same name of Aerostar Bacău and enrolled in the fourth division.