The 1990–91 NHL season was the 74th season of the National Hockey League. The Stanley Cup winners were the Pittsburgh Penguins, who won the best of seven series 4–2 against the Minnesota North Stars to claim their first championship. This was the last NHL season to end in May.
The 1990–91 WHL season was the 25th season of the Western Hockey League (WHL), featuring fourteen teams and a 72-game regular season. The Kamloops Blazers won their second consecutive Scotty Munro Memorial Trophy for posting the league's best regular season record. In the playoffs, the Spokane Chiefs defeated the Lethbridge Hurricanes to win the club's first President's Cup title, before going on to win the 1991 Memorial Cup tournament, becoming the second American club to win the championship.
The 1990–91 OHL season was the 11th season of the Ontario Hockey League. Sixteen teams each played 66 games. The Sault Ste. Marie Greyhounds won the J. Ross Robertson Cup, defeating the Oshawa Generals. The Detroit Compuware Ambassadors are granted a franchise.
The 1990–91 season was the 94th season of competitive football in Scotland. It was notable for the fact that there was a last day title decider at Ibrox between Rangers and Aberdeen. Both teams went into the match level on points and goal difference, but Rangers needed to win the match because Aberdeen had scored two goals more. Rangers won the title with a 2–0 win thanks to two goals by Mark Hateley.
The 1990–91 Calgary Flames season was the 11th National Hockey League season in Calgary. The Flames entered the season with a new coach, as they replaced Terry Crisp with Doug Risebrough. Crisp coached 277 games with the Flames over three years, and his .669 regular season winning percentage remains a Flames record.
The 1990–91 2. Bundesliga season was the seventeenth season of the 2. Bundesliga, the second tier of the German football league system. It was the last season in which the league consisted of West German clubs only. From 1991–92 onwards clubs from the former East Germany joined the league.
The Football Conference season of 1991–92 was the thirteenth season of the Football Conference.
The 1990–91 season was the 111th season of competitive football by Rangers.
The Dutch Eredivisie in the 1990–91 season was contested by 18 teams. PSV won the championship.
The 1990-91 Cup of Yugoslavia was the penultimate season of SFR Yugoslavia's football knockout competition. It was the last season that the cup was also known as the Marshal Tito Cup. It was also the last season in which Croatian and Slovenian teams participated, as the two countries seceded from Yugoslavia in 1991. Croatia's Hajduk Split beat Crvena Zvezda 1–0 to win the cup.
Aswan Sporting Club, commonly referred to as Aswan, is an Egyptian football club based in Aswan, Egypt. The club currently plays in the Egyptian Premier League, the highest league in the Egyptian football league system. Aswan was founded on 1 January 1930. It's the biggest team in town, and its opponent is the Al Nasr Lel Taa'den.
The 1990–91 New York Rangers season was the franchise's 65th season. During the regular season, the Rangers were 36–31–13 and finished in second place in the Patrick Division, qualifying for the playoffs. In the division semi-finals, New York lost in six games to the Washington Capitals.
The 1990–91 New York Islanders season was the 19th season for the franchise in the National Hockey League (NHL).
Lokomotiv is a Bulgarian association football club based in Gorna Oryahovitsa, which currently competes in the Second League, the second level of Bulgarian football.
The 1990–91 FIBA European Champions Cup was the 34th season of the European top-tier level professional FIBA European Champions Cup. It was won by POP 84, after they beat FC Barcelona Banca Catalana 70–65. It was their second championship triumph over the Spanish team, and their third straight championship overall. A feat previously achieved only by Rīgas ASK, who won the first three editions of the trophy. The culminating 1991 FIBA European Champions Cup Final Four was held at Palais Omnisports de Paris-Bercy, Bercy, Paris, on 16–18 April 1991. Toni Kukoč was named Final Four MVP for the second straight year.
The 1990–91 season was Arsenal Football Club's 93rd season of competitive football and 64th consecutive season in the top flight of English football, the Football League First Division. Arsenal finished the season as league champions for the second time in three seasons, losing just one of their 38 league games. They reached the semifinals of the FA Cup, losing to Tottenham. Alan Smith was the top scorer in both the league and all competitions, winning the golden boot for the second time.
The 1990–91 season was the 80th season in Hajduk Split’s history and their 45th and last in the Yugoslav First League. Their 3rd place finish in the 1989–90 season meant it was their 45th successive season playing in the Yugoslav First League.
The 1990–91 season was the 45th season in Rijeka's history and their 29th season in the Yugoslav First League. Their 6th place finish in the 1989–90 season meant it was their 17th successive season playing in the Yugoslav First League. This was also the last season in which Croatian clubs participated in the Yugoslav league.
The 1990–91 season was the 76th season of the Isthmian League, an English football competition featuring semi-professional and amateur clubs from London, East and South East England.
The 1990–91 season was Mansfield Town's 54th season in the Football League and 20th in the Third Division they finished in 24th position with 38 points and were relegated to the Fourth Division.