| Competition: | 1. divisjon |
| Season: | 2018 |
| Winners: | Fart |
| Promoted: | Fart |
| Relegated: | Urædd Bossekop |
| Matches: | 132 |
| Total Goals: | 382 |
| Average Attendance: | 101[1] |
| Prevseason: | 2017 |
| Nextseason: | 2019 |
| Updated: | 3 November 2018 |
The 2018 1. divisjon was the second tier of Norwegian women's football in 2018. The season kicked off on 14 April 2018, finishing on 3 November 2018.
The top placed team was promoted to next year's Toppserien. The second placed team contested a playoff against the 11th placed team from the 2018 Toppserien for the right to play in Toppserien next season.
1. Fart – Promoted
2. Grei
3. Byåsen
4. Øvrevoll Hosle
5. Medkila
6. Amazon Grimstad
7. Fløya
8. Åsane
9. Kaupanger
10. Nanset
11. Urædd – Relegated
12. Bossekop – Relegated