The 1955 Divizia B was the 16th season of the second tier of the Romanian football league system.
The format has been maintained to three series, one of them having 14 teams and two of them only 13. At the end of the season the winners of the series promoted to Divizia A, the last four places from the first and third series and the last five places from the second series relegated to Divizia C. This was the sixth season played in the spring-autumn system, a system imposed by the new leadership of the country which were in close ties with the Soviet Union.
Team changes
To Divizia B
Promoted from Regional Championship
Avântul Fălticeni
Locomotiva Galați
Metalul 108 Cugir
Metalul Arad
Știința București
Știința Craiova
Relegated from Divizia A
Metalul Hunedoara
Locomotiva GR București
Metalul Câmpia Turzii
Progresul Oradea
From Divizia B
Relegated to Regional Championship
Flacăra Pitești
Constructorul Arad
Locomotiva Pașcani
Locomotiva Oradea
Constructorul Craiova
Metalul Brăila
Promoted to Divizia A
Progresul FB București
Avântul Reghin
Locomotiva Constanța
Renamed teams
Metalul Câmpina was renamed as Flacăra Câmpina.
Metalul Ploiești was renamed as Flacăra 1 Mai Ploiești.
Spartac Burdujeni was renamed as Flamura Roșie Burdujeni.
Spartac Focșani was renamed as Progresul Focșani.
Voința București was renamed as Progresul CPCS București.