The Philadelphia Phillies are a professional baseball team based in Philadelphia, Pennsylvania, in the United States. The Phillies are a member of the Eastern Division of Major League Baseball's National League. From 2004 to the present, the Phillies have played their home games at Citizens Bank Park in the South Philadelphia section of the city. The organization is one of the oldest in baseball history.

The "Phillies" name originates as a shortened version of the "Philadelphias", as the convention at the time was to call the team by their home city. They are nicknamed "the Fightin' Phils", or "The Phils". It is a convention in Phillies culture to substitute "F" with "Ph" in various terms or names, such as "the Phans".

The Phillies have won one World Series Championship in their history, against the Kansas City Royals in 1980. In addition to their 1980 World Series victory, the Phillies have made four other World Series appearances, losing in 1983 to the Baltimore Orioles, in 1993 to the Toronto Blue Jays, in 1915 to the Boston Red Sox and being swept by the New York Yankees in 1950.
On September 30, 2007, the Phillies won the NL East Division for the first time since 1993, overcoming the New York Mets, who led the division for most of the season, on the season's last day.