The 2018 Scottish Challenge Cup Final, also known as the IRN-BRU Cup Final for sponsorship reasons, was a football match that took place on 24 March 2018 at McDiarmid Park, between Dumbarton and Inverness Caledonian Thistle. It was the 27th final of the Scottish Challenge Cup since it was first organised in 1990 to celebrate the centenary of the now defunct Scottish Football League, and the fifth since the SPFL was formed. The match was won by Inverness CT 1–0 with a stoppage time winner, marking their second win in the tournament since its inception and their first silverware since the 2014–15 Scottish Cup.