The 2015 1. deild karla (English: Men's First Division) was the 61st season of second-tier Icelandic football.
Twelve teams contested the league which began on 8 May and concluded on 19 September.
[1] The league was contested by twelve clubs.
Eight remained in the division from the 2014 season, while four new clubs joined the 1. deild karla: Each team plays every opponent once home and away for a total of 22 matches per club; 132 matches altogether.