The 2007 World Series was the championship series of Major League Baseball's (MLB) 2007 season. The 103rd edition of the World Series, it was a best-of-seven playoff between the National League (NL) champion Colorado Rockies and the American League (AL) champion Boston Red Sox; the Red Sox swept the Rockies in four games.

It is the Rockies' first and (as of 2024) only appearance in a World Series. Boston’s victory was their second World Series championship in four seasons, their second consecutive World Series sweep and their seventh World Series victory overall; it also marked the third sweep in four years by the AL champions. The series began on Wednesday, October 24 and ended on Sunday, October 28.

Terry Francona became the second Red Sox manager to win two World Series titles, following Bill Carrigan, who won the 1915 and 1916 World Series. Including the last three games of the AL Championship Series, the Red Sox outscored their opposition 59–15 over their final seven games. Francona also became the first manager to win his first 8 World Series games. The Rockies, meanwhile, became the first NL team to get swept in a World Series after sweeping the League Championship Series, and just the second team ever to suffer such a fate, following the Oakland Athletics in 1990. This fate would again be suffered by the 2012 Detroit Tigers, being swept by the San Francisco Giants in the World Series after sweeping the New York Yankees in the ALCS. As of the conclusion of the 2024 season, 2007 remains the most recent season an American League team has swept a National League team in the World Series.