The civil rights leader celebrated for their role in the fight against voter suppression is John Lewis. As a key figure in the civil rights movement, he played an instrumental role in organizing events like the Selma to Montgomery marches, which were critical in raising awareness about voting rights. Lewis dedicated his life to advocating for the disenfranchised and worked tirelessly to influence legislation, including the Voting Rights Act of 1965. His legacy continues to inspire new generations to engage in civic activism and champion social justice.