The 2017–18 season was Ayr United’s 108th season of competitive football and their first season back in League One following their relegation from the Championship in the 2016–17 season.

[1] Ayr also competed in the League Cup, Scottish Cup and the Challenge Cup.

In their first season back in the third–tier of Scottish football, Ayr United finished in first place and were promoted as Champions back to the Scottish Championship after only one season in League One.

[2] Win Draw Loss Postponed