Horlicks is a sweet malted milk hot drink powder developed by founders James and William Horlick. It was first sold as "Horlick's Infant and Invalids Food", soon adding "aged and travellers" to their label. In the early 20th century, it was sold as a powdered meal replacement drink mix.

William Horlick, Sr. was an English-born food manufacturer and the original patent holder of malted milk. He emigrated to the United States in 1869, settling in Racine, Wisconsin. There he started a food company with his brother, James. Horlick was a well-known philanthropist in the Racine area. He was also a major sponsor of the Racine Legion, which played in the National Football League from 1922 until 1924. He died 25 September 1936 at the age of ninety.