Eli Lilly and Company is an American pharmaceutical company headquartered in Indianapolis, Indiana, with offices in 18 countries. Its products are sold in approximately 125 countries. The company was founded in 1876 by Eli Lilly, a pharmaceutical chemist and Union Army veteran of the American Civil War for whom the company was later named.

Eli Lilly, sometimes referred to as Eli Lilly Jr. to distinguish him from his grandfather of the same name, was an American pharmaceutical industrialist and philanthropist from Indianapolis, Indiana, United States. During his tenure as head of Eli Lilly and Company, which was founded by his grandfather, the company grew from a successful, family-owned business into a modern corporation and industry leader. Lilly served as the company president (1932–1948), chairman of the board of directors, and honorary chairman of the board.