The 1990Winnipeg Blue Bombers season was the 33rd season for the team in the
Canadian Football League and their 58th overall. The Blue Bombers finished in first place in the East Division with a 12–6 record, which was also the best record in the league that year. The Blue Bombers defeated the
Toronto Argonauts in the East Final and then defeated the
Edmonton Eskimos in the championship game to win the
78th Grey Cup in the first ever
Grey Cup match-up of
prairie teams.