David Garst (September 10, 1926 in Coon Rapids, Iowa – January 9, 2006), was a seed industry leader, farmer, and former Executive President of Garst Seed Company. He also worked in the livestock, fertilizer, and chemical businesses, and contributed to foreign agricultural development projects in Eastern Europe, Central America, and the Caribbean. Garst believed that farming in the United States is fettered by governmental and environmental regulation. He is credited as bringing forth innovations that helped the corn market.