Citizens Bank Park is a baseball stadium located in Philadelphia, Pennsylvania, in the city's South Philadelphia Sports Complex. It is the home playing field of the Philadelphia Phillies, the city's Major League Baseball (MLB) franchise. The stadium opened April 3, 2004, and hosted its first regular season baseball game on April 12 of the same year, with the Phillies losing to the Cincinnati Reds, 4–1. It is named after Citizens Financial Group.

The ballpark was built to replace the 33-year-old, now-demolished Veterans Stadium, a multipurpose football and baseball facility that was demolished in 2004. Citizens Bank Park features a natural grass-and-dirt playing field and a number of Philadelphia-style food stands that serve cheesesteak sandwiches, hoagies, Tastykakes, soft pretzels, Yards, Yuengling beer, and many other regional specialties. The ballpark lies on the northeast corner of the Sports Complex, which includes Lincoln Financial Field, the Wells Fargo Center, and Xfinity Live!, the Center's adjacent theme park and food court. The stadium seats 42,792.