| Season | 2018 | 
|---|---|
| Champions | ÍA | 
| Promoted |  ÍA  HK  | 
| Relegated |  Selfoss  ÍR  | 
| Matches played | 132 | 
| Goals scored | 418 (3.17 per match) | 
| Top goalscorer | 22 goals Viktor Jónsson, Þróttur R.  | 
← 2017   2019 →  All statistics correct as of 29 September 2018. | |
The 2018 1. deild karla (English: Men's First Division) was the 64th season of the second-tier Icelandic football. Twelve teams competed in the league. The season began on 5 May and concluded on 22 September. [1]
The league is contested by twelve clubs. Eight remained in the division from the 2017 season, while four new clubs joined the 1. deild karla:
| Team | Manager | Location | Stadium | 2017 season | 
|---|---|---|---|---|
| Fram |   | Reykjavík | Laugardalsvöllur | 9th | 
| Haukar |   | Hafnarfjörður | Ásvellir | 7th | 
| HK |   | Kópavogur | Kórinn | 4th | 
| ÍA |   | Akranes | Norðurálsvöllurinn | Úrvalsdeild, 12th | 
| ÍR |   | Reykjavík | Hertz-völlurinn | 10th | 
| Leiknir R. |   | Reykjavík | Leiknisvöllur | 5th | 
| Magni |   | Grenivík | Grenivíkurvöllur | 2. deild, 2nd | 
| Njarðvík |   | Reykjanesbær | Njarðtaksvöllurinn | 2. deild, 1st | 
| Selfoss |   | Selfoss | JÁVERK-völlurinn | 8th | 
| Víkingur Ó. |   | Ólafsvík | Ólafsvíkurvöllur | Úrvalsdeild, 11th | 
| Þór |   | Akureyri | Þórsvöllur | 6th | 
| Þróttur R. |   | Reykjavík | Eimskipsvöllurinn | 3rd | 
| Team | Outgoing manager | Manner of departure  | Date of vacancy | Position in table | Incoming manager | Date of appointment  | 
|---|---|---|---|---|---|---|
| Haukar |   | Resigned | 23 September 2017 [2] | Pre-season |   | 23 September 2017 [3] | 
| ÍR |   | 4 October 2017 [4] | Pre-season |   | 4 October 2017 [5] | |
| ÍA |   | 11 October 2017 [6] | Pre-season |   | 12 October 2017 [7] | |
| HK |   | 12 October 2017 [8] | Pre-season |   | 18 October 2017 [9] | 
| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Promotion or relegation | 
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | ÍA (C, P) | 22 | 14 | 6 | 2 | 42 | 16 | +26 | 48 | Promotion to 2019 Úrvalsdeild | 
| 2 | HK (P) | 22 | 14 | 6 | 2 | 38 | 13 | +25 | 48 | |
| 3 | Þór | 22 | 13 | 4 | 5 | 46 | 37 | +9 | 43 | |
| 4 | Víkingur Ó. | 22 | 12 | 6 | 4 | 38 | 22 | +16 | 42 | |
| 5 | Þróttur R. | 22 | 11 | 3 | 8 | 52 | 40 | +12 | 36 | |
| 6 | Njarðvík | 22 | 7 | 6 | 9 | 24 | 34 | −10 | 27 | |
| 7 | Leiknir R. | 22 | 7 | 4 | 11 | 23 | 29 | −6 | 25 | |
| 8 | Haukar | 22 | 7 | 4 | 11 | 33 | 45 | −12 | 25 | |
| 9 | Fram | 22 | 6 | 6 | 10 | 37 | 38 | −1 | 24 | |
| 10 | Magni | 22 | 6 | 1 | 15 | 27 | 48 | −21 | 19 | |
| 11 | ÍR (R) | 22 | 5 | 3 | 14 | 23 | 48 | −25 | 18 | Relegation to 2019 2. deild karla | 
| 12 | Selfoss (R) | 22 | 4 | 3 | 15 | 35 | 48 | −13 | 15 | 
Each team plays every opponent once home and away for a total of 22 matches per club, and 132 matches altogether.
| Rank | Player | Club | Goals | 
|---|---|---|---|
| 1 |   | Þróttur R. | 22 | 
| 2 |   | Fram | 18 | 
| 3 |   | Þór | 16 | 
| 4 |   | Víkingur Ó. | 11 | 
| 5 |   | HK | 10 | 
|   | Leiknir R. | ||
|   | Víkingur Ó. | ||
|   | ÍA | ||
| 9 |   | Haukar | 9 | 
|   | Leiknir R. | ||
|   | Magni | ||
| 12 |   | Þróttur R. | 7 | 
|   | HK | ||
|   | Selfoss | ||
| 15 |   | Þór | 6 |