William Scott Ament (Chinese Names: 梅子明 and 梅威良 Mei Wei Liang;[1] 14 September 1851 – 6 January 1909 in San Francisco) was a missionary to China for the American Board of Commissioners for Foreign Missions (ABCFM) from 1877, and was known as the "Father of Christian Endeavor in China."[2] Ament became prominent as a result of his activism during the Boxer Uprising and controversial in its aftermath because of the personal attacks on him by American writer Mark Twain for his collection of punitive indemnities from northern Chinese villages.[3]