2015 Ungmennafélagið Fjölnir season

Fjölnir was head coached by Ágúst Gylfason for the fourth consecutive season.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

[20] Fjölnir were drawn in group 2 in the Icelandic league cup, Lengjubikarinn, along with KR, Víkingur R, Leiknir R, KA, Selfoss, Grótta and Fram.

[21] Fjölnir finished 4th in the group with 10 points, 3 wins, 1 draw and 3 losses, but made it through to the quarter-finals because both Leiknir R and KR withdrew their teams from the competition.

Source: KSÍ Fjölnir came into the Icelandic cup, Borgunarbikarinn, in the 32nd-finals and were drawn against ÍA.