The Dangerous Summer is a nonfiction book by Ernest Hemingway published posthumously in 1985 and written in 1959 and 1960. The book describes the rivalry between bullfighters Luis Miguel Dominguín and his brother-in-law, Antonio Ordóñez, during the "dangerous summer" of 1959. It has been cited as Hemingway's last book.

Luis Miguel González Lucas, better known as Luis Miguel Dominguín, was a bullfighter from Spain and the son of the noteworthy bullfighter, Domingo Dominguín. Dominguín adopted his father's name to gain popularity.