奥斯沃斯特里（Oswestry，英语发音：/ˈɒzwəstri/；威尔斯语：Croesoswallt）是英国的城市之一，也是施洛普郡人口最多的城镇之一，位于英格兰和威尔斯的交界处。2011年人口普查时，奥斯沃斯特里有人口17,105人，其中市区有人口16,660人 The town is five miles (8 km) from the Anglo-Welsh border, and has a mixed Welsh and English heritage.。

Oswestry (/ˈɒzwəstri/; Welsh:Croesoswallt), one of the UK's oldest border settlements, is the largest market town and civil parish in Shropshire, England, close to the Welsh border. It is at the junction of the A5, A483, and A495 roads.

The town was the administrative headquarters of the Borough of Oswestry until that was abolished under local government reorganisation with effect from 1 April 2009. Oswestry is the third largest town in Shropshire, following Telford and Shrewsbury. The 2011 Census recorded the population of the civil parish as 17,105 (up almost 10% from 15,613 in 2001) and the urban area as 16,660. The town is five miles (8 km) from the Anglo-Welsh border, and has a mixed Welsh and English heritage. It is the home of the Shropshire libraries' Welsh Collection.