1921 in Norwegian football
Class A of local Association Leagues
Class A of local Association Leagues
------------------------------------

Class A of local association leagues (kretsserier) is the predecessor of a national league competition.

| League | Champion |
| --- | --- |
| **Østfold** | [Sarpsborg](/wiki/Sarpsborg_FK "Sarpsborg FK") |
| **Kristiania** | [Frigg](/wiki/Frigg_Oslo_FK "Frigg Oslo FK") |
| **Aker** | [Hasle](/wiki/Hasle-L%C3%B8ren_IL "Hasle-Løren IL") |
| **Romerike** | [Eidsvold IF](/wiki/Eidsvold_IF "Eidsvold IF") |
| **Hamar og omegn** | [Hamar FL](/wiki/Hamar_FL "Hamar FL") |
| **Opland** | [Gjøvik/Lyn](/wiki/SK_Gj%C3%B8vik-Lyn "SK Gjøvik-Lyn") |
| **Glommendalen** | [Kongsvinger](/wiki/Kongsvinger_IL "Kongsvinger IL") |
| **Nordre Østerdalen** | [Tynset](/wiki/Tynset_IF "Tynset IF") |
| **Buskerud** | [Drammens BK](/wiki/Drammens_BK "Drammens BK") |
| **Vestfold** | [Falk](/wiki/SK_Falk "SK Falk") |
| **Telemark** | [Odd](/wiki/Odds_BK "Odds BK") |
| **Aust\-Agder** | [Grane (Arendal)](/wiki/IK_Grane "IK Grane") |
| **Vest\-Agder** | [Start](/wiki/IK_Start "IK Start") |
| **Rogaland** | [Brodd](/wiki/BK_Brodd "BK Brodd") |
| **Hordaland** | [Hero](/wiki/IK_Hero "IK Hero") |
| **Bergen** | [Brann](/wiki/SK_Brann "SK Brann") |
| **Søndmøre** | [Aalesund](/wiki/Aalesunds_FK "Aalesunds FK") |
| **Romsdalske** | [Braatt](/wiki/IL_Braatt "IL Braatt") |
| **Sør\-Trøndelag** | Strinda |
| **Trondhjem** | [Brage](/wiki/SK_Brage "SK Brage") |
| **Nord\-Trøndelag** | [Sverre](/wiki/IL_Sverre "IL Sverre") |
| **Helgeland** | [Mosjøen](/wiki/Mosj%C3%B8en_IL "Mosjøen IL") |
| **Lofoten og vesterålen** | [Narvik/Nor](/wiki/FK_Mj%C3%B8lner "FK Mjølner") |
| **Troms** | [Harstad](/wiki/Harstad_IL "Harstad IL") |
| **Finnmark** | [Vardø](/wiki/Vard%C3%B8_IL "Vardø IL") |


Which team won in Nordre Østerdalen?