The term "197" can refer to multiple things depending on context:
- The year 197 AD (CXCVII) in the Julian calendar. It was a common year starting on Saturday, notable for Roman Emperor Septimius Severus defeating Clodius Albinus at the Battle of Lugdunum, among other historical events in the Roman Empire and Asia. This year also saw the publication of Galen's major work on medicines and a Christian council in Edessa. Important births and deaths occurred that year as well.
- Bus route number 197 in various locations. For example, in the Netherlands, bus 197 runs between Leeuwarden and Harlingen with 26 stops. There are also bus routes numbered 197 in Manchester, Ireland, and other places with specific schedules and routes.
- Mercedes autolacquer color code 197, officially named OBSIDIANSCHWARZ, used for automotive paint touch-ups and repairs.
If a more specific aspect of "197" is desired, such as its historical significance, transportation routes, or automotive color, please specify.