The 2018 2. deild karla was the 53rd season of third-tier football in Iceland. Twelve teams contested the league. Play began on 5 May and conclude on 22 September.
The league will be contested by twelve clubs, eight of which played in the division during the 2017 season. There are four new clubs from the previous campaign:
<onlyinclude></onlyinclude>
Each team plays every opponent once home and away for a total of 22 matches per club, and 132 matches altogether.