State Route 582 (SR 582) is an east–west state highway in the northwestern portion of the U.S. state of Ohio. The western terminus of SR 582 is at a T-intersection with SR 65 nearly 2 miles (3.2 km) west of Haskins. Its eastern terminus is also at a T-intersection, this time with SR 105 less than 0.50 miles (0.80 km) southwest of Woodville.

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SR 582 passes through the northern half of Wood County and a small portion of northwestern Sandusky County along its way. No part of SR 582 is incorporated within the National Highway System, a system of routes determined to be most important for the nation's economy, mobility and defense.

SR 582 was established in 1940. Its original routing matches that which it utilizes to this day between SR 65 and SR 105 through northern Wood County and northwestern Sandusky County. SR 582 has not experienced any significant changes since its inception.

County	Location	mi	km	Destinations	Notes
Wood	Washington Township	0.00	0.00	SR 65 (West River Road)
	Haskins	2.61	4.20	SR 64 (Haskins Road) – Waterville, Bowling Green
	Middleton Township	5.34	8.59	SR 25 (Dixie Highway) – Bowling Green, Perrysburg
		6.88	11.07	I-75 – Dayton, Toledo	Exit 187 (I-75)
	Webster Township	10.05	16.17	SR 199 – Fostoria, Perrysburg, Toledo
Wood–Sandusky county line	Troy–Woodville township line	18.35	29.53	US 23 north	Western end of US 23 concurrency
		18.39	29.60	US 23 south	Eastern end of US 23 concurrency
Sandusky	Woodville Township	20.08	32.32	SR 105
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

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