An urban stream is a formerly natural waterway that flows through a heavily populated area. Often times, urban streams are low-lying points in the landscape that characterize catchment urbanization. Urban streams are often polluted by urban runoff and combined sewer outflows. Water scarcity makes flow management in the rehabilitation of urban streams problematic.

The Hobart Rivulet, part of the River Derwent catchment, is an urban stream located in the Hobart hinterland and flows through and underneath the city, in Tasmania, Australia.