Yongning County (simplified Chinese: 永宁县; traditional Chinese: 永寧縣; pinyin: Yǒngníng Xiàn; Wade–Giles: Yung-ning Hsien, Xiao'erjing: يٌ‌نِئٍ ثِيًا) is a county of Ningxia Hui Autonomous Region, China, it is under the administration of the prefecture-level city of Yinchuan, the capital of Ningxia, bordering Inner Mongolia to the west.

It has a total area of 1,295 km2 (500 sq mi), and a population of approximately 200,000 people.

In recent years, the county's major crops have been melons and vegetables.

Food processing factories have been established as well.

Yongning County has 1 subdistrict, 5 towns, 1 township and 2 other.