Liga IV Bacău is the regional Liga IV football division for clubs in Bacău County, România, the fourth tier of the Romanian football league system.
It is organized by the County Football Association (Asociația Județeană de Fotbal) and is competed amongst 24 teams divided into 2 series, the winner is promoted to Liga III after a promotion play-off.
In 1968, along with the territorial reorganization of the country,[1] but also due to the large number of requests, FRF proposes a competitive system in which each county has its own football championship, which will activate the former teams in the regional championship as well as the racing and town championship teams from the previous edition.
The structure and organisation of Liga IV Bacău along with other county football leagues have undergone frequent changes right up to the present day.
The champions of each county association play one another in a play-off to promote to the Liga III.