| Competition: | Norwegian First Division |
| Dates: | 22 May 2021 – 14 November 2021 |
| Season: | 2021 |
| Winners: | Røa |
| Promoted: | Røa |
| Relegated: | Grei Fart |
| Matches: | 90 |
| Total Goals: | 291 |
| League Topscorer: | Tuva Espås (13 goals) |
| Biggest Home Win: | |
| Biggest Away Win: | |
| Highest Scoring: | |
| Prevseason: | 2020 |
| Nextseason: | 2022 |
The 2021 Norwegian First Division was the 37th season of the Norwegian First Division, the second-tier Norwegian women's football division, and the 20th season under the current format. The league consisted of 10 teams. The season started on 22 May 2021 and ended on 14 November 2021.[1]
Røa won the league and were thus promoted to the 2022 Toppserien. Grei and Fart were relegated to the 2022 Norwegian Second Division.
The following ten teams compete in the 1. divisjon:[1]
| Club | Location | Ground |
|---|---|---|
| Amazon Grimstad | Grimstad | Levermyr Stadion |
| Fart | Hamar | Fart Kunstgress |
| Fløya | Tromsø | Fløya Arena |
| Grei | Oslo | Grei Kunstgress |
| Hønefoss | Hønefoss | Aka Arena |
| KIL/Hemne | Kyrksæterøra | Hemne Sparebank Arena |
| Medkila | Harstad | Harstad Stadion |
| Røa | Oslo | Røa Kunstgress |
| Øvrevoll Hosle | Bærum | Ferd Arena Hosle |
| Åsane | Bergen | Myrdal Stadion / Åsane Arena |
| Rank | Player | Club | Goals[2] |
|---|---|---|---|
| 1 |  Tuva Espås | Røa | 13 |
| 2 | Miriam Mjåseth | Medkila | 11 |
| 3 | Katarina Dybvik Sunde | Åsane | 10 |
| 4 | Joshualyn Reeves | Øvrevoll Hosle | 9 |
| 5 | Mathilde Harviken | Røa | 8 |
| Mia Huse | Røa |