Billy Leo Williams (born June 15, 1938) is a retired American baseball left fielder who played 16 seasons in Major League Baseball (MLB) for the Chicago Cubs and 2 seasons for the Oakland Athletics. Williams was inducted into the National Baseball Hall of Fame in 1987. In 1999, he was named a finalist for the Major League Baseball All-Century Team. Williams was the 1961 National League (NL) Rookie of the Year and was an NL All-Star for six seasons with the Cubs. In 1970, he had a .322 batting average with 42 home runs and 129 runs batted in (RBI), led the NL with 205 hits, and was the NL Most Valuable Player runner-up.