The 2013 Scandinavian Touring Car Championship was the third Scandinavian Touring Car Championship season. The season started at Ring Knutstorp on 4 May and ends on 21 September at Mantorp Park. It is the first year of TTA – Racing Elite League silhouette regulations in the series following the merge of the STCC and TTA at the end of the 2012 seasons. Fredrik Ekblom goes into the championship as reigning champion.
As the cars used during the 2012 STCC season were banned, major teams such as NIKA Racing (Chevrolet), Kristoffersson Motorsport and IPS (Volkswagen) did not join the merged championship. All teams were Swedish-registered.
| Team | Car | Driver | Rounds | ||
|---|---|---|---|---|---|
| Brovallen Design | Citroën C5 TTA | 2 |  Andreas Wernerson[1] | 8 | |
| 8 | Alx Danielsson[2] | 6–7 | |||
| 9 | Niclas Olsson | 1–4 | |||
| 10 | Jocke Mangs | All | |||
| 86 | Fredrik Magnusson[3] | 5 | |||
| Team Tidö[4] | Saab 9-3 TTA | 3 |  Roar Lindland | 1–6 | |
| 7 | Roger Samuelsson[5] | 7–8 | |||
| PWR Racing | 37 | Daniel Haglöf | All | ||
| Picko Troberg Racing | 69 | Alexander Graff | 1–7 | ||
| 89 | Daniel Roos[6] | 8 | |||
| BMW Dealer Team | BMW SR TTA | 4 | Fredrik Larsson | All | |
| 5 | Richard Göransson | All | |||
| WestCoast Racing Xlander Racing WCR | 6 | Robin Rudholm | 1–4, 8 | ||
| 16 | Philip Forsman[7] | 8 | |||
| Volvo Polestar Racing | Volvo S60 TTA | 11 | Fredrik Ekblom | All | |
| 12 | Thed Björk | All | |||
| Volvo Polestar | 13 | Carl Philip Bernadotte | All | ||
| Volvo Polestar Performance | 14 | Robert Dahlgren | All | ||
| 15 | Linus Ohlsson | All | |||
| Engström Motorsport | Honda Civic TTA | 17 | Tomas Engström | All | |
| Dacia Dealer Team | Dacia SE TTA | 20 | Mattias Andersson | All |
All rounds were held in Sweden.
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| Manufacturer | KNU | SOL | GÖT | FAL | ÖST | KAR | TIE | MAN | Points | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Volvo | 32 | 39 | 47 | 46 | 46 | 44 | 47 | 48 | 48 | 30 | 48 | 47 | 522 | |
| 2 | BMW | 44 | 37 | 17 | 30 | 17 | 32 | 17 | 28 | 28 | 44 | 14 | 12 | 320 | |
| 3 | Citroën | 12 | 16 | 6 | 8 | 11 | 12 | 18 | 8 | 6 | 8 | 22 | 27 | 154 | |
| 4 | Saab | 12 | 12 | 22 | 12 | 21 | 8 | 18 | 8 | 4 | 16 | 3 | 8 | 144 | |
| 5 | Dacia | 6 | 2 | 8 | 10 | 8 | 10 | 0 | 10 | 10 | 6 | 8 | 12 | 90 | |
| 6 | Honda | 1 | 1 | 4 | 0 | 4 | 1 | 0 | 4 | 8 | 0 | 12 | 0 | 35 | |
| Manufacturer | KNU | SOL | GÖT | FAL | ÖST | KAR | TIE | MAN | Points | ||||||