1955–56 Landsdelsserien
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.Tables
District Østland/Nordre
District Sørland/Vestland
Group A1
Group A2
Group B
District Møre/Trøndelag
Møre
Trøndelag
;Sørland/Vestland
;Results A1–A2
;Results A–B
Årstad won 2–0 over Ulf and were promoted to Hovedserien.
;Møre/Trøndelag
- Molde 2–4 Steinkjer
- Steinkjer 3–2 Molde
Steinkjer won 7–4 on aggregate and were promoted to Hovedserien.