The 2018 TCR Scandinavia Touring Car Championship was the eighth Scandinavian Touring Car Championship season. This season was the second season since the introduction of the TCR regulations and the last under the promotion of STCC AB, which declared bankruptcy in early February 2019. The season started at Ring Knutstorp on 4 May and ended at Mantorp Park on 22 September, after six rounds.
Robert Dahlgren is the defending drivers' champion, while Volkswagen Dealer Team Sweden are the defending teams' champions.