| Competition: | Superettan |
| Season: | 2018 |
| Winners: | Helsingborgs IF |
| Matches: | 240 |
| League Topscorer: | Andri Rúnar Bjarnason (16 goals) |
| Biggest Home Win: | Östers IF 5–0 Landskrona BoIS (6 October 2018) |
| Biggest Away Win: | IK Frej 1–5 Helsingborgs IF (14 April 2018) Gefle IF 1–5 Landskrona BoIS (28 May 2018) IK Frej 1–5 Halmstads BK (26 August 2018) IK Brage 0–4 Östers IF (11 August 2018) |
| Longest Wins: | 7 matches Helsingborgs IF[1] |
| Longest Unbeaten: | 17 matches AFC Eskilstuna |
| Longest Winless: | 13 matches Gefle IF |
| Longest Losses: | 8 matches IFK Värnamo |
| Highest Attendance: | 16,089 Helsingborgs IF 2–0 Norrby IF (2 August 2018) |
| Lowest Attendance: | 211 IFK Värnamo 2–0 Varbergs BoIS (24 April 2018)[2] |
| Average Attendance: | 2,278 |
| Prevseason: | 2017 |
| Nextseason: | 2019 |
The 2018 Superettan was part of the 2018 Swedish football season, and the 19th season of Superettan, Sweden's second-tier football division in its current format. A total of 16 teams contest the league.
Fixtures for the 2018 season were announced on 21 December 2017.[3]
A total of 16 teams contest the league. The top two teams qualify directly for promotion to Allsvenskan, the third will enter a play-off for the chance of promotion.
| Team | Location | Stadium | Turf1 | Stadium capacity1 | |
|---|---|---|---|---|---|
| AFC Eskilstuna | Eskilstuna | Tunavallen | Artificial | 7,800 | |
| Degerfors IF | Degerfors | Stora Valla | Natural | 12,500 | |
| Falkenbergs FF | Falkenberg | Falcon Alkoholfri Arena | Natural | 5,565 | |
| GAIS | Gothenburg | Gamla Ullevi | Natural | 18,416[4] | |
| Gefle IF | Gävle | Gavlevallen | Artificial | 6,500 | |
| Halmstads BK | Halmstad | Örjans Vall | Natural | 10,873 | |
| Helsingborgs IF | Helsingborg | Olympia | Natural | 16,500 | |
| IFK Värnamo | Värnamo | Finnvedsvallen | Natural | 5,000 | |
| IK Brage | Borlänge | Domnarvsvallen | Artificial | 6,500 | |
| IK Frej | Täby kyrkby | Vikingavallen | Artificial | 2,650 | |
| Jönköpings Södra IF | Jönköping | Stadsparksvallen | Natural | 5,500 | |
| Landskrona BoIS | Landskrona | Landskrona IP | Natural | 10,500 | |
| Norrby IF | Borås | Borås Arena | Artificial | 17,800 | |
| Varbergs BoIS | Varberg | Påskbergsvallen | Natural | 4,500 | |
| Örgryte IS | Gothenburg | Gamla Ullevi | Natural | 18,416 | |
| Östers IF | Växjö | Myresjöhus Arena | Natural | 12,000 |
All teams are obligated to have the logo of the league sponsor Svenska Spel as well as the Superettan logo on the right sleeve of their shirt.
Note: Flags indicate national team as has been defined under FIFA eligibility rules. Players and Managers may hold more than one non-FIFA nationality.
| Team | Head coach1 | Captain | Kit manufacturer | Main shirt sponsor | |
|---|---|---|---|---|---|
| AFC Eskilstuna |  | Nike | Various | ||
| Degerfors IF | | | Adidas | Various | |
| Falkenbergs FF | | | Nike | Gekås Ullared | |
| GAIS | | Carl Nyström | Select | Various | |
| Gefle IF | | | Umbro | Various | |
| Halmstads BK | Igor Krulj | | Puma | Various | |
| Helsingborgs IF | | | Puma | Resurs Bank | |
| IFK Värnamo | | | Puma | Various | |
| IK Brage | | | Select | Various | |
| IK Frej | | | Puma | Various | |
| Jönköpings Södra IF | | | Nike | Volkswagen | |
| Landskrona BoIS | Philip Andersson | Nike | Various | ||
| Norrby IF | Korosh Hatami | Marcus Översjö | Nike | Various | |
| Varbergs BoIS FC | |  | Nike | Various | |
| Örgryte IS | | Daniel Paulson | Nike | HA Bygg | |
| Östers IF | | | Puma | Various |
The 13th-placed and 14th-placed teams of Superettan meet the two runners-up from 2018 Division 1 (Norra and Södra) in two-legged ties on a home-and-away basis with the team from Superettan finishing at home.----Syrianska FC won 3–2 on aggregate.----
4–4 on aggregate. Varbergs BoIS won on away goals.----
| Player | For ! | Against | Result | Date | |
|---|---|---|---|---|---|
 Andri Rúnar Bjarnason | Helsingborgs IF | IK Frej | 1–5 | 14 April 2018 | |
| Sargon Abraham | Degerfors IF | Norrby IF | 1–3 | 14 May 2018 | |
 Kosuke Kinoshita | Halmstads BK | Varbergs BoIS | 2–3 | 2 June 2018 | |
| Simon Alexandersson | IK Brage | IFK Värnamo | 2–3 | 30 June 2018 | |
| Dušan Jajić | IK Frej | Gefle IF | 2–5 | 5 August 2018 | |
 Chisom Egbuchulam | Falkenbergs FF | Degerfors IF | 4–1 | 26 August 2018 |
