1955–56 Landsdelsserien
| Season | 1955–56 |
|---|---|
| Promoted | Sparta Strømmen Årstad Steinkjer |
| Relegated | Herkules Drafn Nedenes Varhaug Kopervik Fana Djerv Clausenengen Træff Rosenborg Falken Wing |
← 1954–55 1956–57 → | |
The 1955–56 Landsdelsserien was a Norwegian second-tier football league season.
The league was contested by 54 teams, divided into a total of seven groups from four districts; Østland/Søndre, Østland/Nordre, Sørland/Vestre and Møre/Trøndelag. The two group winners in the Østland districts, Sparta and Strømmen promoted directly to the 1956–57 Hovedserien. The other five group winners qualified for promotion play-offs to compete for two spots in the following season's top flight. Årstad and Steinkjer won the play-offs and were promoted.