Gaizhou (simplified Chinese: 盖州; traditional Chinese: 蓋州; pinyin: Gàizhōu) is a coastal city in south-central Liaoning province of Northeast China. It is under the administration of Yingkou City, which lies 31 kilometres (19 mi) to the north-northwest, and is located at the northwest end of the Liaodong Peninsula near the northeast coast of the Bohai Sea.