Andersen is a Danish-Norwegian surname and may refer to:
- Arthur Andersen, the former auditing, tax and consulting firm
- Bridgette Andersen, child actress
- Carl-Albert Andersen, Norwegian pole vaulter
- Chris Andersen, Basketball player
- Hans Christian Andersen, playwright and author
- May Andersen, Danish model
- Mikkel Andersen, Danish footballer
- Morten Andersen, American football player
- Stephan Andersen, Danish football goalkeeper
