title: EU4 (disambiguation)
text: # EU4 (disambiguation)
  
  EU4 can refer to the following:
  
  * Europa Universalis IV: a computer game by Paradox Interactive.
  * Haplogroup E1b1b (Y-DNA) in human genetics, previously known as EU4.
  * Big Four (Western Europe), four major European powers, also known as EU4.
  