Wessel may refer to:

• Wessel (name), including a list of people with the name
• Wessel Islands, a group of islands forming part of the Northern Territory, Australia, named after the Dutch ship Wesel in 1636
  • Cape Wessel, the most northerly point of Rimbija Island (itself the northernmost of the Wessel Islands)
• Wessels plass, a square in Oslo, Norway