St Mirren’s most recent major trophy is the Scottish League Cup (Premier Sports Cup) in the 2025–26 season, when they beat Celtic 3–1 in the final.
Date and context
The 2025–26 Premier Sports Cup final was played on Sunday 14 December 2025, with St Mirren defeating Celtic 3–1 at Hampden. This was St Mirren’s second League Cup triumph, the previous one coming in 2013 against Hearts.
