2019 Lillestrøm SK season

The 2018 season was Lillestrøm's 43rd consecutive, and final, year in Eliteserien. Lillestrøm finished the season in 14th position, entering the Relegation play-offs where they were defeated on away goals by IK Start after the two-legged affair ended 5-5. In the Norwegian Cup, Lillestrøm reached the Third Round before defeat to Strømmen.

Winter
In:

Out:

Summer
In:

Out:

Appearances and goals

 * colspan="14"|Players away from Lillestrøm on loan:
 * colspan="14"|Players away from Lillestrøm on loan:


 * colspan="14"|Players who left Lillestrøm during the season:
 * colspan="14"|Players who left Lillestrøm during the season:


 * }