The 2017–18 UEFA Futsal Cup is the 32nd edition of Europe's premier club futsal tournament, and the 17th edition under the current UEFA Futsal Cup format organized by UEFA.
Inter FS are the defending champions.
Starting from this season, the top three-ranked associations according to the UEFA Futsal National Team coefficient rankings can enter two teams. Moreover, same as previous seasons, the title holders qualify automatically, and thus their association can also enter a second team. If the title holders are from the top three-ranked associations, the fourth-ranked association can also enter two teams. All other associations can enter one team (the winners of their regular top domestic futsal league, or in special circumstances, the runners-up). Therefore, a maximum of 59 teams from the 55 UEFA member associations may enter the tournament.
For the 2017–18 UEFA Futsal Cup, the associations are allocated places according to their 2017–18 UEFA Futsal National Team coefficient rankings, calculated based on the following:
Since the winners of the 2016–17 UEFA Futsal Cup, Inter FS, are from the top three-ranked associations, the fourth-ranked association can also enter two teams.
Following expansion of the tournament, the top-ranked teams no longer receive byes to the elite round, and the number of teams in the main round is increased from 24 to 32. Teams are ranked according to their UEFA club coefficients, computed based on results of the last three seasons, to decide on the round they enter:
The elite round remains to be contested by 16 teams, drawn into four groups of four, where the group winners and runners-up from main round Path A are seeded into the top two pots and kept apart if they are from the same group. The winners of each group advance to the final tournament, which is played in the same knockout format as before.
A record total of 56 teams from 52 associations entered this season's competition. Two associations had no league as of 2016–17 (Faroe Islands, Liechtenstein). The champions of Iceland (UMF Selfoss) did not enter. Northern Ireland launched a futsal league in 2016, and entered for the first time, with their entrant to be confirmed after the draw in July 2017.
Among the entrants, 24 teams entered the main round and 32 teams entered the preliminary round. The hosts for the eight preliminary round groups and the eight main round groups were announced by UEFA on 20 June 2017.