Göteborgs Atlet- och Idrottssällskap (meaning Gothenburg Strongman and Athletics Association), commonly referred to as GAIS or Gais, is a Swedish football club based in Gothenburg. The club is affiliated to the Göteborgs Fotbollförbund and play their home games at Gamla Ullevi. Fans also refers to the club as Grönsvart (green-black), or Makrillarna (the Mackerels) because of the traditional green and black striped shirt and white shorts.

GAIS is one of the oldest football clubs in Sweden. The club was a founding member of Allsvenskan and also the first champions of the league. They have won a total of four national championship titles, five league championship titles and one national cup title. Even though GAIS have played 49 seasons in Allsvenskan they only spent six years in the top division during a 30-year period from 1976 to 2005, with another six seasons of that time spent as low as the third division. The club thus gained the reputation of being a yo-yo club, constantly going up and down through the league system. After their promotion in 2005 the club played seven straight seasons in Allsvenskan which was a feat not achieved since the degradation in 1955. After relegation in 2012 they finished seventh in Superettan in 2013, where they stayed until 2021 when they got relegated. After achieving back to back promotions in 2022 and 2023, GAIS played the 2024 season in Allsvenskan and finished in 6th place.