The 2016–17 Northern Ireland Football League Cup was the 31st edition of Northern Ireland's football knock-out cup competition for national league clubs, and the third edition of the competition as the Northern Ireland Football League Cup. Following a reduction in the number of clubs in the three Northern Ireland Football League divisions, this season's League Cup was contested by 36 clubs - down from 40 last season. The competition began on 6 August 2016 with the first round, and concluded on 18 February 2017. For the first time in the competition's history, the League Cup did not have a title sponsor for this season.