Otley is a market town and civil parish at a bridging point on the River Wharfe, in the City of Leeds metropolitan borough in West Yorkshire, England. Historically a part of the West Riding of Yorkshire, the population was 13,668 at the 2011 census. It is in two parts: south of the river is the historic town of Otley and to the north is Newall, which was formerly a separate township. The town is in lower Wharfedale on the A660 road which connects it to Leeds.

The River Wharfe is a river in Yorkshire, England originating within the Yorkshire Dales National Park. For much of its middle course it is the county boundary between West Yorkshire and North Yorkshire. Its valley is known as Wharfedale.