The 2003–04 Montreal Canadiens season was the club's 95th season of play and their 87th in the National Hockey League (NHL). The Canadiens would return to the playoffs reaching the Eastern Conference Semifinals before being eliminated by the eventual Stanley Cup champions, the Tampa Bay Lightning, 4–0.

Offseason

Bob Gainey, who played his entire 16 season NHL career with Montreal, was named the team’s new general manager on June 2, 2003, and assumed the role on July 1 from Andre Savard, who was demoted to assistant general manager.

Regular season

Heritage Classic

The Heritage Classic was an outdoor ice hockey game played on November 22, 2003, in Edmonton, Alberta, between the Edmonton Oilers and the Montreal Canadiens. It was the second NHL outdoor game and the first regular season outdoor game in the history of the NHL, and was modeled after the success of the "cold war" game between the University of Michigan and Michigan State University in 2001. The first NHL game to be played outdoors was in 1991 when the Los Angeles Kings played the New York Rangers in an exhibition game outside Caesars Palace in Las Vegas. The event took place in Edmonton's Commonwealth Stadium in front of a crowd of 57,167, the largest number of people to ever watch a live NHL game, despite temperatures of close to −18 °C, −30 °C (−22 °F) with wind chill. It was held to commemorate the 25th anniversary of the Edmonton Oilers joining the NHL in 1979. The Canadian Broadcasting Corporation (CBC) television broadcast also set the record for most viewers of a single NHL game with 2.747 million nationwide. This was the first NHL game broadcast in HDTV on CBC. The Canadiens won the game by a score of 4–3.

Final standings

Schedule and results

Regular season

Playoffs

Player statistics

Scoring

Goaltending

Awards and records

Awards

Milestones

Transactions

The Canadiens were involved in the following transactions from June 10, 2003, the day after the deciding game of the 2003 Stanley Cup Finals, through June 7, 2004, the day of the deciding game of the 2004 Stanley Cup Finals.

Trades

Players acquired

Players lost

Signings

Draft picks

Montreal's draft picks at the 2003 NHL entry draft held at the Gaylord Entertainment Center in Nashville, Tennessee.