The 2016 1. divisjon (referred to as OBOS-ligaen for sponsorship reasons) was a Norwegian second-tier football league season.

[2] In the 2015 1. divisjon, Sogndal, and Brann won promotion to Tippeligaen, while Follo, Nest-Sotra, Bærum and Hønefoss were relegated to the 2016 2. divisjon.

Mjøndalen,[3] and Sandefjord,[3] were relegated from the 2015 Tippeligaen, while KFUM Oslo, Raufoss, Ull/Kisa and Kongsvinger were promoted from the 2015 2. divisjon.

The third to sixth-placed teams took part in the promotion play-offs; these were single leg knockout matches, two semi-finals and a final.

The winners, Jerv, advanced to play Stabæk over two legs in the Tippeligaen play-offs for a spot in the top-flight next season.