Willamette (Chinese: 威林密; pinyin: Wēilínmì) was an American steamer that was later purchased by China and saw action during the Taiping Rebellion.

Willamette was ordered by the Pacific Mail Steamship Company and built in Wilmington, Delaware as a three-masted schooner.

On 5 August 1850, captained by E. W. Willet, Willamette departed Philadelphia for Astoria, Oregon Territory, sailing around Cape Horn.

[2][3][4] From January 1856, Willamette began operating along the Pearl River between Hong Kong and Canton, where she was commanded by William Curry of Savannah, Georgia.

[8] In March or April 1862, Viceroy of Liangjiang Zeng Guofan purchased the ship for use as an auxiliary vessel in the Jiangsu region.