威瑟恩西（Withernsea）是东约克郡的一个海滨小镇和民政教区。据2011年英国人口普查，威瑟恩西有人口6,159人，比2001年的5,980人略有增加。

Withernsea is a seaside resort town and civil parish in the East Riding of Yorkshire, England, and forms the focal point for a wider community of small villages in Holderness. Its most famous landmark is the white inland lighthouse, rising around 127 feet (39 m) above Hull Road. The lighthouse – no longer active – now houses a museum to 1950s actress Kay Kendall, who was born in the town.