State Route 302 (SR 302) is a 13.3-mile-long (21.4 km) north–south state highway in Rhea County, Tennessee.

It winds its way north through farmland as Old Dixie Highway and Old Stage Road.

It then has a short concurrency with SR 68 before following along the banks of Watts Bar Lake (as New Lake Road) to enter Spring City, where SR 302 comes to an end at an intersection with US 27/SR 29.

The entire route of SR 302 is a two-lane highway.

[2] The entire route is in Rhea County.