The civil rights leader known for the iconic "I Have a Dream" speech is Martin Luther King Jr. Delivered during the 1963 March on Washington for Jobs and Freedom, the speech emphasized King's vision of a racially integrated and harmonious America. In front of the Lincoln Memorial, he called for an end to racism and for civil and economic rights. This powerful address resonated deeply with American society and has since become a hallmark of the civil rights movement. King's ability to articulate the aspirations of millions has left a lasting legacy in the fight for equality and social justice.