Brushy Creek is a tributary of the Yarra River in Melbourne. The creek rises in Mooroolbark Heights and passes through a mixture of underground channels and floodways through the east of Mooroolbark, until it returns to an open waterway through central Mooroolbark. From Mooroolbark it continues downstream through Croydon and passes under the Maroondah Highway, where it flows through Croydon North, Chirnside Park and Wonga Park until it joins the Yarra River in the Warrandyte State Park.