| State: | OH |
| Type: | SR |
| Route: | 98 |
| Map: | OH 98 map.svg |
| Length Mi: | 46.18 |
| Length Round: | 2 |
| Length Ref: | [1] |
| Established: | 1923 |
| Direction A: | South |
| Terminus A: | in Waldo |
| Junction: |
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| Direction B: | North |
| Terminus B: | in Plymouth |
| Counties: | Marion, Crawford, Richland |
| Previous Type: | SR |
| Previous Route: | 97 |
| Next Type: | SR |
| Next Route: | 99 |
State Route 98 (SR 98) is a north–south state highway in the northern portion of the U.S. state of Ohio. Its southern terminus is at the SR 47/SR 423 concurrency in Waldo, and its northern terminus is at SR 61 in Plymouth.
SR 98 is known as Columbus-Sandusky Road along its stretch between Waldo and Bucyrus, as well as Bucyrus Street in Plymouth. This stretch of SR 98, in combination with US 23 south of Waldo, and SR 4 north of Bucyrus, comprises the most direct route between Columbus and Sandusky.
SR 98 was commissioned in 1923 on the same alignment as today. The entire route was paved by 1933.