| Suður-Þingeyjarsýsla | |
|---|---|
| County | |
|
County Suður-Þingeyjarsýsla, Iceland |
|
| Coordinates: 65°40′N 17°10′W / 65.667°N 17.167°W | |
| Country |
|
| Region | Northeastern Region |
| Time zone | GMT (UTC+0) |
Suður-Þingeyjarsýsla was a county of Iceland, located in the Northeastern Region of the country.
Mývatn, one of Iceland’s largest lakes, is located in what was central Suður-Þingeyjarsýsla.