UNB may refer to:

Education

  • National University of Benin (French: )
  • University of Brasília
  • University of New Brunswick
  • University of New Brunswick Fredericton campus (UNBF)
  • University of New Brunswick Saint John campus (UNBSJ)

Sports

  • University of New Brunswick
  • UNB Reds
  • UNB Saint John Seawolves

Other

  • Barrientista National Union (Spanish: ), a political party in Bolivia
  • Unnilbium (Unb), a chemical element now known as Nobelium
  • Union National Bank a bank in the United Arab Emirates
  • United News of Bangladesh
  • Ultra Narrow Band, a network technology
  • UNB (group), a South Korean boy band consisting of winners from The Unit: Idol Rebooting Project