What is "jonassen"

Jonassen is a surname. Notable people with the surname include:

• Emil Jonassen (born 1993), Norwegian football player
• Fartein Døvle Jonassen (born 1971), Norwegian novelist and translator
• Hagbard Jonassen (1903–1977), Danish botanist, quaternary geologist, war resister and nuclear disarmament proponent
• Kenneth Jonassen (born 1974), male badminton player from Denmark
• Vitus Jonassen Bering or Vitus Bering (1681–1741), Danish-born navigator in the service of the Russian Navy