JWH may refer to: John Wesley Hardin, an American gun-fighter from the 18th century John W. Henry, futures trader and owner of the Boston Red Sox John Winston Howard, former Prime Minister of Australia JWH-133, a medication used to prevent Alzheimer's disease John W. Huffman, creator of the JWH cannabinoids Jared Waerea Hargreaves- New Zealand rugby league player for the Manly Sea Eagles