The individual with the most championship titles in NASCAR history is Richard Petty, with a remarkable total of seven titles. He achieved this in the 1960s and 1970s, becoming a legendary figure in motorsports. Petty's legacy includes not just victories but also his impact on the sport's popularity and growth. His style, success, and dedication have made him a beloved icon among fans and fellow racers alike. Even decades later, he remains a significant part of the NASCAR community.