XXXX may refer to:
Arts and entertainment
- XXXX (album), by You Say Party! We Say Die!, 2009
- XXXX, the main character in the 2004 film Layer Cake
Organisations
- XXXX Panzer Corps, a tank corps in the German Army during World War II
- XXXX Reserve Corps, a German military formation
Other uses
- Castlemaine XXXX, a brand of beer
- XXXX Bitter
- XXXX Gold
- XXXX Summer Bright Lager
- Mr Fourex, the beer’s mascot
- XXXX Island, also Pumpkin Island, a privately owned island
- XXXX syndrome, Tetrasomy X, a chromosomal disorder
- XXXX, or Fourecks, the Australia-inspired continent in Terry Pratchett’s Discworld series