Daniel Hay (May 18, 1781 – January 19, 1853) was an American politician and co-founder of Carmi, Illinois. Born in Virginia, Hay came with his family to Kentucky at a young age. Shortly after his service in the War of 1812, Hay decided to establish a homestead in Illinois. While traversing to his preferred location, he decided instead to help establish Carmi in White County. He was elected the first county sheriff, then served two terms in the Illinois Senate. He spent the rest of his life working to ensure pension payments and operating a store with his son.