AaB

AaB was founded on 13 May 1885 by English engineers who were building Jutland's railway system, and the first years was concentrated on the game of cricket. It was initially named Aalborg Cricketklub (Aalborg Cricket club) but the name of the club was changed to Aalborg Boldklub (Aalborg ballclub) in 1899. Football was adopted on an amateur basis in 1902, and has since been the main sport, as the name was changed to the current Aalborg Boldspilklub af 1885 (Aalborg ballgameclub of 1885) in 1906.

Aalborg BK was part of the top-flight Danish leagues from the 1928–29 season, until the relegation of the club in 1947. The club returned to the best league in 1963, and except from the years of 1972, 1978 and 1981–1986, Aalborg BK has since been a part of the various editions of the Danish football championship. Despite its many years in the Danish championship, the club never won a championship title, but Aalborg BK won the Danish Cup competition in 1966 and 1970. Paid football was introduced in Denmark by the Danish Football Association in 1978. As Aalborg BK returned to the best Danish league, the club founded the professional branch of AaB A/S in 1987 to run a professional football team.

During the 1990s, AaB emerged as one of Denmark's leading clubs, winning its first two national championships. In the 1994–95 season, under head coach Poul Erik Andreasen, the team secured the league title with forward Erik Bo Andersen finishing as the division's top scorer with 24 goals. Although the club was initially eliminated by Dynamo Kyiv in the qualifying rounds of the 1995–96 UEFA Champions League, Dynamo were later expelled from the tournament due to a match-fixing scandal. As a result, AaB were reinstated and became the first Danish club to participate in the group stage of the Champions League. Competing in Group A, AaB earned a 2–1 home victory over Panathinaikos and drew 2–2 with Porto, but were eliminated after finishing third in the group. Following the campaign, Andersen transferred to Rangers in Scotland. His departure was offset by the emergence of Søren Frederiksen, who scored 17 goals in the 1998–99 season as AaB claimed their second league title, this time under Swedish manager Hans Backe. That season also saw AaB return to Champions League qualification, where they were again drawn against Dynamo Kyiv. The Danish side lost the home leg 2–1 and drew 2–2 in Ukraine, with a late AaB goal controversially ruled not to have crossed the line, resulting in another early exit from the competition.

Following their domestic title in 1998–99, AaB established themselves as a stable presence in the upper half of the Danish Superliga. The club secured a third-place finish in the 2006–07 season, earning qualification for the 2007 UEFA Intertoto Cup. In the Intertoto Cup, AaB progressed past Finnish side FC Honka, advancing on the away goals rule after a 2–2 draw in the away leg and a 1–1 draw in Aalborg. In the third and final round, they faced Belgian club Gent, drawing 1–1 away and winning 2–1 at home to secure a place in the second qualifying round of the 2007–08 UEFA Cup. In the UEFA Cup qualifiers, AaB were drawn against Finnish champions HJK Helsinki. After a 2–1 defeat in the first leg in Helsinki, AaB responded with a 3–0 victory in the return leg at home, advancing to the first round proper. There, they were paired with Italian side Sampdoria, who featured high-profile players such as Antonio Cassano and Vincenzo Montella. Despite the challenge, AaB advanced on away goals, drawing 2–2 in Genoa and holding Sampdoria to a 0–0 draw in Aalborg—becoming the first Danish club to eliminate an Italian team from European competition. In the group stage, AaB were seeded in the lowest pot and drawn into a challenging group alongside Anderlecht, Tottenham Hotspur, Getafe, and Hapoel Tel Aviv. They opened with a home draw against Anderlecht, followed by a narrow 3–2 defeat to Tottenham Hotspur in London after having led 2–0 at half-time. A subsequent 2–1 home loss to Getafe left AaB unable to progress to the knockout stage.

In the 2007–08 season, Aalborg won their third Danish Championship and qualified for the 2008–09 UEFA Champions League qualifying rounds. in the second qualifying round, Aalborg easily eliminated FK Modriča 7–1 on aggregate. In the third round, before the group stage, they defeated FBK Kaunas 2–0 both at home and away and reached the group stage of the Champions League for the second time, the first time a Danish team achieved this. In the group stage, they were drawn in Group E along with defending champions Manchester United, Villarreal and Celtic. Aalborg finished third in the group, ahead of Celtic, with 6 points and progressed to the 2008–09 UEFA Cup knockout stage.

Their first match in their UEFA Cup run was against Spanish side Deportivo de La Coruña. Aalborg BK won the first leg at home 3–0 and the second leg at the Estadio Riazor 1–3, securing a 6–1 aggregate. Aalborg BK thereby earned a place among the last 16 teams. where they faced Manchester City. After a 2–0 loss in Manchester in the first leg Aalborg BK fought back to tie the score with a 2–0 win at home. The tie ended in agony however, as Aalborg were defeated by 4–3 on penalties.

On 11 May 2014, the club won their 4th Danish Championship, and four days later the double was secured, as the club defeated F.C. Copenhagen 4–2 in the Cup final.

On 3 June 2023, AaB suffered relegation to Danish 1st Division for the first time since 1986 and the first after the establishment of the Danish Superliga in 1991, due to finishing in last place.