The 2004 Stanley Cup playoffs for the National Hockey League began on April 7, 2004, following the 2003–04 regular season. The playoffs ended with the Tampa Bay Lightning winning the Stanley Cup with a seven-game series win over the Calgary Flames on June 7. It was Tampa Bay's first Stanley Cup championship. It was the Flames' third final appearance, losing to the Montreal Canadiens in 1986 and beating the Canadiens in the 1989 rematch. These playoffs ended up being the last playoff tournament until 2006 due to the 2004–05 NHL lockout that resulted in the cancellation of the following season. The 16 qualified teams, eight from each conference, played best-of-seven games for conference quarterfinals, semifinals and finals. The winner of each conference proceeded to the Stanley Cup Finals. The format was identical to the one introduced for the 1999 playoffs.

The Nashville Predators are a professional ice hockey team based in Nashville, Tennessee. The Predators compete in the National Hockey League (NHL) as a member of the Central Division in the Western Conference, and have played their home games at Bridgestone Arena since 1998. Their television broadcasting rights are held by Bally Sports South, and the Nashville Predators Radio Network flagship station is WPRT-FM. The Predators are currently affiliated with two minor league teams: the Milwaukee Admirals of the American Hockey League (AHL), and the Atlanta Gladiators of the ECHL.