Karl Friedrich August G?tzlaff (8 July 1803  9 August 1851), anglicised as Charles Gutzlaff, was a German missionary to the Far East, notable as one of the first Protestant missionaries in Bangkok, Thailand and for his books about China. He was one of the first Protestant missionaries in China to dress like a Chinese. He gave himself a Chinese name, (pinyin: Gu? Sh?l?), but later on Gu? Sh?l? became his official Chinese name. Gutzlaff Street in Hong Kong was named after him.