Kentucky Route 735 (KY 735) is a 0.98-mile-long (1.58 km) state highway in southeastern Campbell County, Kentucky, that runs from Kentucky Route 10 at Flagg Spring to Kentucky Route 8 in northern Mentor.

Major intersections

The entire route is in Campbell County.

Location	mi	km	Destinations	Notes
Flagg Spring	0.000	0.000	KY 10 (Flagg Springs Pike) – Brooksville, Alexandria	Western terminus
	0.043	0.069	AA Hwy (KY 9)
Mentor	0.980	1.577	KY 8 (Mary Ingles Highway)	Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi