Walter Edmund Roth (2 April 1861 – 5 April 1933) was a British colonial administrator, anthropologist and medical practitioner, who worked in Queensland, Australia and British Guiana between 1898 and 1928.
Roth and his brother, Henry Ling Roth, are the subject of a join biography by Russell McDougall & Iain Davidson: The Roth Family, Anthropology, and Colonial Administration (2008).
Roth was appointed the first Northern Protector of Aborigines in 1898 and was based in Cooktown, Queensland. From 1904 to 1906 he was Chief Protector and part of his duties was to record Aboriginal cultures.
The first three of his Bulletins on North Queensland ethnography were published in 1901, numbers 4 to 8 appearing between 1902 and 1906. In 1905 he was appointed a royal commissioner to inquire into the condition of the aborigines of Western Australia, and in 1906 he was made government medical officer, stipendiary magistrate. The remainder of Roth's bulletins on North Queensland ethnology, began to appear in the Records of the Australian Museum at Sydney in 1905; and numbers 9 to 18 will be found in volumes VI to VIII.
In 1906 Roth was made protector of Indians in the Pomeroon district of British Guiana.
He was given charge of the Demerara River, Rupununi and Northwest districts in 1915.
In 1924 his valuable An Introductory Study of the Arts, Crafts, and Customs of the Guiana Indians was published at the government printing office at Washington, U.S.A., appended to the Thirty-eighth Annual Report of the Bureau of American Ethnology. Though called an introductory study this is an elaborate work of well over 300,000 words with hundreds of illustrations. Another volume, Additional Studies of the Arts, Crafts, and Customs of the Guiana Indians was published as Bureau of American Ethnology Bulletin No. 91 (1929).
Roth retired from the government service in 1928, and became curator of the Georgetown museum of the Royal Agricultural and Commercial Society, and government archivist.