[2] Inverness' best run in European competition was their debut against Astra Giurgiu of Romania where they narrowly lost 1–0 on aggregate thanks to a Constantin Budescu free kick in Inverness,[3] denying an all British tie in the following round against English Premier League side, West Ham United.

However, they narrowly missed out on an earlier European debut in the 2012–13 season, after a crushing 1–0 defeat against rivals, Ross County on the final day of the season forced Inverness out of the top 3, and missing European qualification by 2 points.

[6] Inverness again nearly qualified for Europe, in 2023 via the Scottish Cup, where they lost the final 3–1 to Celtic.

On 16 July, in front of a near sell-out crowd, Inverness lost 1–0 courtesy of a Constantin Budescu free kick slipping through the gloves of debutant goalkeeper, Owain Fôn Williams, who had only arrived from League Two side, Tranmere Rovers that morning.

On 22 July, Inverness were held to a 0–0 draw in Giurgiu, with Ryan Christie nearly levelling the aggregate just before half time, but unfortunately, it wasn't enough to progress to the next round where Premier League side, West Ham United would have been the opponent in what would be their final season at the Boleyn Ground.Note: Inverness scores are listed first.