Kentucky Route 317 (KY 317) is a 8.9-mile-long (14.3 km) state highway in the U.S. state of Kentucky. The highway connects mostly rural areas of Letcher County with Fleming-Neon.

KY 317 begins at an intersection with KY 805 in Neon Junction, within Letcher County. This intersection is just to the south of Fleming-Neon. It travels to the north-northwest, paralleling Wright Fork, and almost immediately crosses over the fork on the C.S.M. James C. Madison Bridge. Just on the north side of the bridge, it enters the city. The highway curves to the north-northeast, leaves Wright Fork, begins paralleling Yonts Fork, and intersects the southern terminus of KY 343. It crosses over Little Creek on the PVT Lonnie Meade Memorial Bridge just before it leaves the city limits of Fleming-Neon. It then crosses over Yonts Fork on the Specialist Leonard Fleming Bridge. The highway travels through Jackhorn before entering Hemphill. There, KY 317 curves to the north-northwest and crosses over Yonts Fork on the SFC Luther J. Potter Jr. Memorial Bridge. At this bridge, it leaves Yonts Fork and begins paralleling Quillen Fork. It crosses over the fork twice before it ends. The highway then curves to the north-northeast and becomes a curvy road as it travels to the northwest. KY 317 begins paralleling Stevens Fork. It intersects the western terminus of KY 1469 (Long Fork Road) just before it crosses over Rockhouse Creek and curves to the west-southwest. Here, Stevens Fork ends; also, the highway begins paralleling the creek. It then enters Deane, where it curves to the northwest and meets its northern terminus, an intersection with KY 7.

The entire route is in Letcher County.

Location	mi	km	Destinations	Notes
Neon Junction	0.0	0.0	KY 805	Southern terminus
Wright Fork	0.2	0.32	C.S.M. James C. Madison Bridge
Fleming-Neon	1.0	1.6	KY 343 north	Southern terminus of KY 343
	1.9	3.1	PVT Lonnie Meade Memorial Bridge	Crossing of Little Creek
Yonts Fork	2.5	4.0	Specialist Leonard Fleming Bridge
Hemphill	2.8	4.5	SFC Luther J. Potter Jr. Memorial Bridge	Crossing of Yonts Fork
​	6.8	10.9	KY 1469 east (Long Fork Road)	Western terminus of KY 1469
Deane	8.9	14.3	KY 7	Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

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