2016 FC Seoul season

The 2016 season was FC Seoul's 33rd season in the K League Classic.

Pre-season

 * In Guam: From 8 January 2016 to 26 January 2016
 * In Kagoshima, Japan: From 31 January 2016 to 14 February 2016

Match reports and match highlights
Fixtures and Results at FC Seoul Official Website 

Attendance records

 * Season total attendance includes K League Classic, FA Cup, and AFC Champions League combined.

Team squad
All players registered for the 2016 season are listed.

Out on loan and military service
※ In: Transferred from other teams in the middle of the season.

※ Out: Transferred to other teams in the middle of the season.

※ Discharged: Transferred from Sanjgu Sangmu or Ansan Mugunghwa for military service in the middle of the season (registered in 2016 season).

※ Conscripted: Transferred to Sangju Sangmu or Ansan Mugunghwa for military service after the end of the season.

Rookie Free Agent

 * (Univ.) means player who went to university then back to FC Seoul.
 * (After Univ.) means player who joined FC Seoul after entering university.

Tactical analysis
Former manager Choi Yong-soo used a 3–5–2 formation. Hwang Sun-hong used a 4–3–3 formation.

Starting eleven and formation
This section shows the most used players for each position considering a 4–3–3 formation.