Chang'an District (simplified Chinese: 长安区; traditional Chinese: 長安區; pinyin: Cháng'ān Qū; literally: "long peace") is one of nine districts of Xi'an, the capital of Shaanxi province, China. It is the most spacious of the nine districts and third-largest out of all 13 county-level divisions of Xi'an, while it is also the second most-populous.