U.S. Route 25W

U.S. Route 25W
U.S. Route 25W
	US 25W highlighted in red
Route information
	Auxiliary route of US 25
	Maintained by KYTC and TDOT
Length	145.7 mi (234.5 km)
Existed	November 26, 1926–present
Tourist; routes	Cumberland Historic Byway
Major junctions
South end	US 25 / US 25E / US 70 at Newport, TN
	I-40 exit 432; US 411 at Newport, TN; US 11E at Strawberry Plains, TN; I-40 exits 393–394; I-75 / I-275 / I-640 in Knoxville, TN; US 441 in Rocky Top, TN; I-75 from Rocky Top to Caryville, TN; I-75 at Jellico, TN; I-75 at Corbin, KY;
North end	US 25 / US 25E at North Corbin, KY
Location
Country	United States
Counties	TN: Cocke, Jefferson, Sevier, Knox, Anderson, Campbell; KY: Whitley, Laurel
Highway system
	United States Numbered Highway System; List; Special; Divided;
	Kentucky State Highway System; Interstate; US; State; Parkways;
	Tennessee State Routes; Interstate; US; State;

U.S. Route 25W (US 25W) is the western branch of US 25 from Newport, Tennessee, where US 25 splits into US 25E and US 25W, to North Corbin, Kentucky, where the two highways rejoin.

US 25W has been included in the United States Numbered Highway System since the system's inception in 1926.