• National Register of Historic Places in Ohio by county‎ (89 C)
• National Register of Historic Places in Cuyahoga Valley National Park‎ (19 P)
• National Register of Historic Places in Ohio by populated place‎ (4 C, 1 P)

*

• Lists of National Register of Historic Places in Ohio‎ (2 C, 2 P)

A

• Archaeological sites on the National Register of Historic Places in Ohio‎ (115 P)

B

• Buildings and structures on the National Register of Historic Places in Ohio‎ (17 C, 5 P)

C

• Conflict sites on the National Register of Historic Places in Ohio‎ (2 P)

D

• Historic districts on the National Register of Historic Places in Ohio‎ (1 C, 233 P)

F

• Former National Register of Historic Places in Ohio‎ (16 P)

H

• Historic district contributing properties in Ohio‎ (2 C, 62 P)

N

• National Historic Landmarks in Ohio‎ (4 C, 81 P)
• National Historic Sites in Ohio‎ (3 P)

O

• Ohio National Register of Historic Places templates‎ (46 P)

P

• Parks on the National Register of Historic Places in Ohio‎ (15 P)
• Populated places on the National Register of Historic Places in Ohio‎ (3 P)

R

• Properties of religious function on the National Register of Historic Places in Ohio‎ (3 C, 12 P)

T

• Transportation on the National Register of Historic Places in Ohio‎ (4 C)

Σ

• Ohio Registered Historic Place stubs‎ (6 C, 1 P)