| Type: | highway |
| Road Name: | Spencer Highway |
| State: | sa |
| Length: | 207 |
| Direction A: | North |
| Direction B: | South |
| Coordinates A: | -33.1677°N 138.0678°W |
| Coordinates B: | -34.7671°N 137.5976°W |
| Pushpin Label Position A: | top |
| Pushpin Label Position B: | bottom |
| End A: | Augusta Highway |
| End B: | Yorke Highway |
| Exits: | Copper Coast Highway |
| Region: | Yorke and Mid North[1] |
| Through: | , |
Spencer Highway (route B89) is a highway along the east coast of Spencer Gulf in South Australia. It runs south from Augusta Highway through Port Pirie to Minlaton.