Maxx may refer to:
- Maxx (band), a German Eurodance act
- Maxx (film), an Iranian movie
- The Maxx, a comic book and animated character
- MAXX (brand), the livery / brand under which part of Auckland, New Zealand's public transport network operates
- Maxx (wrestler), the professional wrestler John Czawlytko, who used this ring name in WCW in the mid-late 1990s
- Maxx Almere, a bus service in Almere, the Netherlands
- Holden Captiva MaXX, a rebadged Opel Antara motor vehicle
- T.J. Maxx, a department store chain in the USA
- T.K. Maxx, a retail chain in Europe
- A line of radio-controlled vehicles from Traxxas, including the T-Maxx, SportMaxx, S-Maxx and E-Maxx
- Maxx (Maxx "The Wild Child" Mann), a singer in the Trans-Siberian Orchestra