Chengxi District (Chinese: 城西区) is one of four districts of the prefecture-level city of Xining, the capital of Qinghai Province, Northwest China.

It covers the western part of Xining's built-up conurbation. It has over 200 000 residents (2004). Ethnically, most are Han; there are also Hui, Tibetan, Tujia, etc. - 26 in all.

Chengxi District is divided into 7 subdistricts and 1 town:

• Xiguan Avenue Subdistrict (西关大街街道)
• Guchengtai Subdistrict (古城台街道)
• Hutai Subdistrict (虎台街道)
• Shengli Road Subdistrict (胜利路街道)
• Xinghai Road Subdistrict (兴海路街道)
• Wenhui Road Subdistrict (文汇路街道)
• Tonghai Road Subdistrict (通海路街道)
• Pengjiazhai Town (彭家寨镇)

District executive, legislature and judiciary are in the Xiguan Avenue Subdistrict, together with the CPC and PSB branches. (Executive or People's Government is addressed : May Fourth Avenue, 810001).

• List of administrative divisions of Qinghai