The famous civil rights leader known for his "I Have a Dream" speech is Dr. Martin Luther King Jr. He delivered this iconic speech during the 1963 March on Washington for Jobs and Freedom, advocating for civil and economic rights for African Americans. King's powerful words emphasized his vision of a racially integrated and harmonious America. His commitment to nonviolent protest and equality made him a symbol of the civil rights movement. King’s legacy is marked by his dedication to justice, peace, and the belief that all individuals should be judged by their character rather than the color of their skin.