Berlin is a borough located approximately 75 miles southeast of Pittsburgh in Somerset County, Pennsylvania, United States. The population was 2,004 at the 2020 census. It is part of the Johnstown, Pennsylvania Metropolitan Statistical Area. The town's major celebration each fall concerns the Whiskey Rebellion in the 1790s, although in recent years residents also commemorate the termination of Flight 93 in nearby Shanksville in 2001.