List of former state routes in Ohio

Typical highway markers
System information
Formed	1912, renumbered in 1923, 1927, 1962
State	State Route nn (SR nn)
System links
Ohio State Highway System Interstate US State Scenic

List of former state routes in Ohio (1–49)

List of former state routes in Ohio (50–130)

List of former state routes in Ohio (142–219)

List of former state routes in Ohio (223–270)

List of former state routes in Ohio (271–352)

List of former state routes in Ohio (354–568)

List of former state routes in Ohio (569–673)

List of former state routes in Ohio (675–824)