| State: | OH |
| Type: | SR |
| Route: | 285 |
| Established: | 1931 |
| Map: | OH 285 map.svg |
| Maint: | ODOT |
| Length Mi: | 28.03 |
| Length Round: | 2 |
| Length Ref: | [1] |
| Direction A: | South |
| Terminus A: | in Caldwell |
| Junction: | in Old Washington |
| Direction B: | North |
| Terminus B: | in Madison Township |
| Counties: | Noble, Guernsey |
| Previous Type: | SR |
| Previous Route: | 284 |
| Next Type: | SR |
| Next Route: | 286 |
State Route 285 (SR 285) is a 28.03miles long state highway in eastern Ohio. The route runs from SR 821 in Caldwell, Ohio, the county seat of Noble County, to US 22 in Madison Township, Guernsey County.
No segment of SR 285 is included within the National Highway System.[2]
SR 285 was first designated in 1931 as a gravel spur route from SR 265 near Lore City to Senecaville.[3] [4] Within one year, the route was extended north via a dirt road to US 40 in Old Washington.[5] By 1935, the route was extended to its current northern terminus at US 22.[6] SR 285 was extended to its current southern terminus in Caldwell (at the time, US 21) by 1937.[7] No major changes have occurred to the route since that time.