Marmion Avenue is a 40-kilometre (25 mi) arterial road in the northern coastal suburbs of Perth, Western Australia, linking Trigg in the south with Yanchep in the north. It forms part of State Route 71 along with West Coast Highway, which it joins onto at its southern terminus.

Karrinyup is a suburb of Perth, the capital city of Western Australia, and is located 12 km north of Perth's central business district. Its local government area is the City of Stirling.