Joseph Ernest Meyer (September 5, 1878 – March 9, 1950) was a botanist, writer, illustrator, publisher, and supplier of pharmaceutical-grade herbs and roots to the drug trade who became a prominent citizen and eventually one of the first millionaireis  in Northwest Indiana. He was the founder of the Indiana Botanic Gardens, Calumet National Bank and Meyer Publishing (now MeyerBooks). At his death he was said to be the world's largest distributor of herbs used in salves, cosmetics, and medicines.

Meyer not only supplied large pharmaceutical firms with drug-grade botanicals, he made up and packaged medical, culinary, and magical herbs for retail sales through his mail order catalogues and yearly almanacs. Many of the plants were raised in Indiana, but he also travelled the world to connect with growers in tropical and Mediterranean climates, and was a major importer of raw botanicals. The Indiana Botanic Garden catalogues and almanacs were illustrated with his own artwork, both line-art and water colours, and he wrote extensively about the folkloric customs employed by herbalists from many cultures. The articles and illustrations that he produced for the yearly catalogues were eventually collected into books, among which the most popular was titled The Herbalist and Herb Doctor.