2011 Lillestrøm SK season

The 2011 season was Lillestrøm SK's 22nd season in the Tippeligaen, and their 38th consecutive season in the top division of Norwegian football. It is Henning Berg's third season as the club's manager. On 27 October 2011 with Lillestrom in 12th place, Henning Berg was sacked and replaced by Petter Belsvik who took on a Caretaker role.

Transfers
In:

Out:

Appearances and goals

 * colspan="14"|Players who left Lillestrøm on loan:
 * colspan="14"|Players who left Lillestrøm on loan:


 * colspan="14"|Players who appeared for Lillestrøm no longer at the club:
 * colspan="14"|Players who appeared for Lillestrøm no longer at the club:


 * }