The 1989–90 Divizia C was the 34th season of Liga III, the third tier of the Romanian football league system.
[1] Relegated from Divizia B Promoted from County Championship Promoted to Divizia B Relegated to County Championship
Viitorul CSS Drăgășani was renamed as Viitorul CSS Drăgășani.
ASA Chimia Brazi moved to Ploiești and was renamed to ASA Chimia Ploiești.
Autobuzul Voința Odobești moved to Mărășești and was renamed Autobuzul Chimia Mărășești.