John Walker is a common name that can refer to various individuals. One notable John Walker is a Scottish distiller known for founding the famous Johnnie Walker whisky brand in the early 19th century. His legacy continues through the brand's wide range of blended whiskies, which are enjoyed worldwide. Another prominent John Walker is an American civil rights activist and author. He is known for his work in promoting social justice and equality, particularly during the 1960s. His contributions have had a lasting impact on the civil rights movement in the United States.