Portrush Road is a major arterial route through the eastern suburbs of Adelaide, the capital of South Australia.

This article will deal with the entire length of the corridor for sake of completion, as well to avoid confusion between declarations.

[3] Portrush road carries approximately 36,000 vehicles per day, including heavy freight trucks.

Knox owned land near the intersection with Greenhill Road, in the area now occupied by the suburbs of Glenunga and Glenside.

What is now Lower Portrush Road (including the bridge over the River Torrens) did not exist at all.