| Type: | road |
| Road Name: | Onkaparinga Valley Road |
| State: | sa |
| Length: | 30.2 |
| Route: | B34 |
| Direction A: | Northeast |
| Direction B: | Southwest |
| Coordinates A: | -34.8184°N 138.9649°W |
| Coordinates B: | -35.0146°N 138.7844°W |
| Pushpin Label Position A: | top |
| Pushpin Label Position B: | bottom |
| End A: | Torrens Valley Road |
| End B: | Mount Barker Road |
| Exits: |
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| Region: | Adelaide Hills[1] |
Onkaparinga Valley Road is a South Australian secondary road, connecting the towns of Birdwood, Woodside, Balhannah and Verdun within the Adelaide Hills. It is designated part of route B34.
Onkaparinga Valley Road is entirely contained within the Adelaide Hills Council local government area.[2]