| Country: | JPN |
| Type: | National |
| Route: | 298 |
| Map Custom: | yes |
| Image Notes: | Route 298 in Toda |
| Length Km: | 43.8 |
| Length Ref: | [1] |
| Established: | 1970 |
| Direction A: | West |
| Terminus A: | in Wakō, Saitama |
| Direction B: | East |
| Terminus B: | in Ichikawa, Chiba |
| Previous Type: | Route |
| Previous Route: | 297 |
| Next Type: | Route |
| Next Route: | 299 |
National Route 298 is a national highway of Japan connecting Wakō, Saitama and Ichikawa, Chiba in Japan, with a total length of 43.32NaN2. Much of the route is concurrent with the Tokyo Gaikan Expressway, Tokyo's middle ring road.
Route 298 was designated on 1 April 1970 from Toda to Ichikawa. On 1 April 1982 the road was extended to Wakō.