Janssen

Janssen may refer to:

Astronomy

• Janssen (lunar crater)
• Janssen (Martian crater)
• Janssen (planet), an exoplanet also known as 55 Cancri e

Other

• Janssen (surname) is a common Dutch surname, cognate of "Johnson"
• Janssen Pharmaceuticals, a Belgian company
• Janssen Biotech, an American subsidiary
• Janssen COVID-19 vaccine
• , World War II US Navy destroyer escort
• E. Janssen Building, a historic building in Eureka, California

See also

• Jansen (disambiguation)
• Janssens