The 1989 Great American Bash was the first Great American Bash professional wrestling pay-per-view (PPV) event produced by World Championship Wrestling (WCW) under the National Wrestling Alliance (NWA) banner and the fifth annual Great American Bash event overall; the previous events were held by the former NWA's Jim Crockett Promotions. It took place on July 23, 1989, at the Baltimore Arena in Baltimore, Maryland. This was the second Great American Bash held at this venue after the 1988 event.

The 1988 Great American Bash was the fourth annual Great American Bash professional wrestling event produced by the National Wrestling Alliance's (NWA) Jim Crockett Promotions (JCP). It was the first Great American Bash event to air on pay-per-view (PPV), as the previous events aired on closed-circuit television. The event took place on July 10, 1988, at the Baltimore Arena in Baltimore, Maryland. This was the final NWA event produced by JCP and the third and final NWA event to be produced as a pay-per-view, as JCP was purchased by Turner Broadcasting System in November 1988 and was rebranded as World Championship Wrestling (WCW). This was also the first Pay Per View produced under the Turner Home Entertainment banner as the other two events were produced by The Wrestling Network.