Estonian national road 21
| Tugimaantee 21 | ||||
| Route information | ||||
| Length | 69.6 km (43.2 mi) | |||
| Major junctions | ||||
| From | Rakvere | |||
| To | Mustvee ( T36) | |||
| Location | ||||
| Country | Estonia | |||
| Highway system | ||||
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Tugimaantee 21 (ofcl. abbr. T21), also called the Rakvere–Luige highway (Estonian: Rakvere–Luige maantee), is a 69.6-kilometre-long national basic road in northeastern Estonia. The highway runs from the center of the town of Rakvere to the west side of Mustvee at national road 36.