201 was a year of the Julian calendar, in the third century AD.
201 may also refer to:
- 201 (number), the natural number following 200 and preceding 202
- 201 BC, a year of the pre-Julian Roman calendar
- 201 Penelope, a main-belt asteroid
- "201" (South Park), an episode of the American adult animated sitcom
- 201 (area code), used for telephone numbers in New Jersey, USA
- 201 (MBTA bus), a bus route in Boston, Massachusetts, USA
- IT-201, a New York (state) tax form.
- Event 201, a pandemic exercise
- Peugeot 201, a car manufactured by Peugeot