The Aberdeen IronBirds are a Minor League Baseball team based in the city of Aberdeen in Harford County, Maryland. They are the High-A affiliate of the Baltimore Orioles and compete in the South Atlantic League. They were previously members of the New York–Penn League from 1977 to 2020, and of the High-A East in 2021.
The team is currently owned by retired Oriole player Cal Ripken Jr. Ripken Jr. purchased the team, then known as the Utica Blue Sox, and moved them to his hometown of Aberdeen in time for the 2002 season. The IronBirds play their home games at Leidos Field at Ripken Stadium, which is visible from I-95. On August 16, 2006, the IronBirds played host to the New York–Penn League All-Star Game. Leidos Field at Ripken Stadium was also used for the Cal Ripken World Series in 2003 and 2004, forcing the team to go on extended road trips, 20 or more games, during the youth competition. The Cal Ripken World Series moved across the street to Cal Sr.'s Yard in 2005.