BJJ Academies in Oslo.

Oslo (the Norwegian capital and the surrounding county) runs almost the entire Norwegian BJJ scene. Frontline Academy — described on its site as Norway's most accomplished BJJ, no-gi, and MMA gym, and ranked among the top 20 highest-level BJJ academies in Europe — operates Oslo locations at Hasle and Majorstua, alongside Frontline Muay Thai. The team's instructor roster carries multiple World Championship and European Championship medalists.

Roger Gracie Academy Oslo carries the Roger Gracie team affiliation in the city. Other Oslo BJJ rooms include Grip Gym, Jiu-Jitsu Collective, Mudo Gym (Carl Berner and Ulsrud locations), Oslo Fight Center, and Ryen Kampsport.