The notable figure known for his "I Have a Dream" speech in 1963 is Dr. Martin Luther King Jr. He delivered this iconic speech during the March on Washington for Jobs and Freedom on August 28, 1963, in front of a massive crowd at the Lincoln Memorial. In his speech, King passionately articulated his vision of a racially integrated and harmonious America, where individuals would be evaluated by their character rather than the color of their skin. The speech became a defining moment in the civil rights movement, resonating deeply in American society and becoming a symbol of the ongoing struggle for racial equality.