1951–52 Landsdelsserien
The 1951–52 Landsdelsserien was a Norwegian second-tier football league season, the first named Landsdelsserien.
The league was contested by 54 teams, divided into a total of seven groups from four districts; Østland/Søndre, Østland/Nordre, Sørland/Vestland and Møre/Trøndelag. The two group winners in the Østland districts, Larvik Turn and Lillestrøm promoted directly to the 1952–53 Hovedserien. The other five group winners qualified for promotion play-offs to compete for two spots in the following season's top flight. Varegg and Ranheim 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
- Varegg 2–2 Ålgård
- Varegg 2–1 Ålgård
Varegg won 2–1 over Ålgård and were promoted to Hovedserien.
;Møre/Trøndelag
Ranheim won 2–0 over Hødd and were promoted to Hovedserien.