Empress Xiaomucheng (1781 – 17 February 1808), of the Manchu Bordered Yellow Banner Niohuru clan, was a consort of the Daoguang Emperor.

On 22 December 1796, Lady Niohuru married Minning, the second son of the Jiaqing Emperor, and became his primary consort.

Lady Niohuru was granted the posthumous title "Empress Xiaomu".

In 1829, Lady Niohuru's casket was temporarily moved to the Baohua Ravine Hall (寶華峪正殿).

In 1835, her casket was transferred to the Mu Mausoleum of the Western Qing tombs.