Hammerjack's Concert Hall and Nightclub was a large concert hall in downtown Baltimore through the 1980s and into the 1990s. The club attracted many big-name national acts. It was torn down on June 12, 1997 to make way for M&T Bank Stadium parking lot.

A second version of Hammerjack's opened in a different location in Baltimore, but it has now been closed due to plans to build a condominium complex at that site.