The 2015 1. divisjon was the second tier of Norwegian women's football in 2015.
The season kicked off on 18 April 2015, finishing on 8 November 2015.
The top placed team wase promoted to next year's Toppserien.
The second placed team contested a playoff against the 11th placed team from the 2015 Toppserien for the right to play in Toppserien next season.