Airdrieonians is a professional football club based in Airdrie, Scotland. Founded in 1878, the club competes in the Scottish League One, which is the third tier of Scottish football. The team's home matches are played at Excelsior Stadium, which has a capacity of around 10,000 spectators. The club's colors are red and white, and they are often referred to as "The Diamonds." Airdrieonians has a rich history, including several league titles and cup successes. The club has undergone various name changes and reformation over the years, but it remains a significant part of the local community and Scottish football.