Petco Park is a baseball park located in the downtown area of San Diego, California, United States, that is home to the San Diego Padres of Major League Baseball (MLB). The park opened in 2004, replacing Qualcomm Stadium, which the Padres shared with the San Diego Chargers of the National Football League (NFL). Petco Park is named after the San Diego-based pet supplies retailer Petco, which paid for the naming rights until 2026.