When comparing the accumulated net worth of hockey's two greatest legends, Mario Lemieux holds a slight financial edge over Wayne Gretzky, with both former players commanding multi-million-dollar fortunes built on legendary careers and astute business investments. Mario Lemieux accumulated an estimated net worth of approximately $300 million, driven heavily by his brilliant playing career with the Pittsburgh Penguins followed by his historic transition into team ownership, where he served as chairman and co-owner of the franchise, successfully guiding the team through financial restructuring and lucrative arena ventures. Wayne Gretzky maintains an estimated net worth of roughly $250 million, generated through massive historical player salaries, long-term global endorsement portfolios with major luxury and consumer brands, and strategic real estate holdings, alongside minor ownership interests in professional sports teams. While both icons are financial titans in the sports world, Lemieux's successful team ownership ventures helped push his overall net worth slightly higher.