Janson is a group of serif typefaces.
Janson may also refer to:
- Janson (name), a surname and uncommon given name
- Janson Design Group, an American acoustic and audiovisual architectural design firm
- Janson metro station, a railway station in Charleroi, Belgium
- Lycée Janson de Sailly, a school in Paris, France
- Saint-Estève-Janson, a commune in Bouches-du-Rhône, France
- Talbot v. Janson, a 1795 U.S. Supreme Court case