Cactus Jack is a Serbian rock band formed in Pančevo in 1998.

Led by guitarist Stevan Birak and fronted by vocalist Vladimir Jezdimirović, the group started as a cover band. Cactus Jack's debut release was the live cover album DisCover (2002), followed by the live tribute album Deep Purple Tribute (2003). The band presented themselves with traditional hard rock sound, the releases bringing them attention of the audience and the media. The band released their first album of their own songs, entitled Natur all, in 2004, followed by the album Mainscream (2005). In the years following the release of their second studio album, the band failed to maintain mainstream popularity and returned to club performances with female vocalist Bojana Racić, including a number of funk and pop rock covers into their repertoire. In mid-2010s the band returned to hard rock sound with new vocalist, Dragoljub "Paja" Bogdanović.