 The northern part of Timmiarmiit in the foreground, with Heimdal Glacier behind it | |
 Location of Timmiarmiit | |
| Geography | |
|---|---|
| Location | North Atlantic Ocean Southern Greenland |
| Coordinates | 62°45′N 42°10′W / 62.750°N 42.167°W |
| Area | 229.3 km2 (88.5 sq mi) |
| Length | 30 km (19 mi) |
| Width | 16 km (9.9 mi) |
| Coastline | 140.6 km (87.36 mi) |
| Highest elevation | 1,300 m (4300 ft) |
| Highest point | Takkerne |
| Administration | |
Greenland | |
| Municipality | Sermersooq |
| Demographics | |
| Population | 0 |
Timmiarmiit (old spelling 'Tingmiarmit') is an uninhabited island of the King Frederick VI Coast, Sermersooq municipality, southern Greenland.