The 2017–18 Brøndby IF season was Brøndby IF's 37th consecutive season in the top tier of Danish football, 28th consecutive in the Superligaen, and 52nd as a football club.

Besides Superligaen, the club participated in DBU Pokalen and UEFA Europa League.

It was the second season with manager Alexander Zorniger.

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

Source: [citation needed] Brøndby IF's games in the main round 2017-18:[10] Win   Draw   Loss Win   Draw   Loss Win   Draw   Loss Win   Draw   Loss