Tennessee State Route 73

State Route 73
State Route 73
	SR 73; Secondary in red, scenic route in blue, unsigned in green
Route information
	Maintained by TDOT
Length	101.76 mi (163.77 km)
Existed	October 1, 1923–present
Major junctions
West end	I-40 / US 321 / SR 95 in Lenoir City
	I-75 in Lenoir City; US 129 in Maryville; Foothills Parkway in Walland; US 441 in Pigeon Forge; Gatlinburg Bypass in Gatlinburg; US 441 in Gatlinburg; Foothills Parkway in Cosby; US 321 near Cosby; I-40 near Cosby;
North end	US 25 / US 70 in Newport
Location
Country	United States
State	Tennessee
Counties	Loudon, Blount, Sevier, Cocke
Highway system
	Tennessee State Routes; Interstate; US; State;

State Route 73 (SR 73) is west-north state highway in East Tennessee. For most of its length, it is an unsigned companion route to U.S. Route 321 (US 321).