The 2017 Super 8s were the third season of the Rugby Football League domestic competition in which the format of splitting teams after a certain number of games have been played. The format was employed across all three divisions and was used to decide championships, promotion and relegation. For the clubs in Super League XXII the split came after 23 games. The top eight clubs played each other once more before the top four team entered the playoffs for a place in the Super League Grand Final. In this group, points amassed during the regular season were carried forward to the Super 8 stage.