Hansen may refer to:
People with the surname Hansen:
- Hansen (surname)
In places:
- Hansen, Idaho, town in the United States
- Hansen, Wisconsin, town in the United States
- Hansen Township, Ontario, Canada
In music:
- Beck Hansen, American alternative musician
Other:
- Hansen Natural, maker of Hansen's sodas and other drinks
- Hansen (crater), a lunar crater
- Hansen Writing Ball, an early kind of typewriter from Denmark
- Hansen's disease, another name for leprosy
- Helly-Hansen, Norwegian manufacturer of sports, work, and outdoor gear
- Hansen (car), Dutch car
- Robert Hanssen, common misspelling, FBI analyst/spy
- Hansen (horse)