| Season: | 2003–04 |
| Teams: | 48 (3x16) |
| League Topscorer: | Ionuț Mazilu (20 goals) |
| Nextseason: | 2004–05 |
The 2003–04 Divizia B was the 64th season of the second tier of the Romanian football league system.
The format has been changed from two series of 16 teams to three series, each of them consisting of 16 teams. At the end of the season, the winners of the series promoted to Divizia A and the last three places from all the series relegated to Divizia C.[1] [2]
Promoted from Divizia C
Relegated from Divizia A
Relegated to Divizia C
Promoted to Divizia A
Divizia A clubs and bitter rivals, Petrolul Ploiești and Astra Ploiești merged. Astra was absorbed by Petrolul and Oțelul Galați, which initially relegated after the promotion/ relegation play-off against FC Oradea, remained in the top-flight.
Callatis Mangalia was promoted from Divizia C as the best next runner-up, in order to occupy the vacant place.
Chindia Târgoviște was renamed as FCM Târgoviște.
CS Certej merged with Mureșul Deva, was moved from Certeju de Sus to Deva and renamed as CS Deva.
Extensiv Craiova was renamed as FC Craiova.
Viorel Gheorghe (Petrolul Moinești) Cristian Turcu (CFR Cluj) Răzvan Cociș (Universitatea Cluj) Florin Anghel (FC Vaslui) Valentin Badea (FC Vaslui) Constantin Borza (Midia Năvodari) Damian Militaru (Jiul Petroșani) Tiberiu Bălan (Sportul Studențesc) Gigel Ene (Rulmentul Alexandria) Dan Codreanu (Universitatea Cluj)