Steven Norman "Steve" Carlton (born December 22, 1944), nicknamed "Lefty", is a former Major League Baseball left-handed pitcher. He pitched from 1965 to 1988 for six different teams in his career, but it is his time with the Philadelphia Phillies where he received his greatest acclaim as a professional and won four Cy Young Awards. He was elected to the Baseball Hall of Fame in 1994.
Carlton has the second-most lifetime strikeouts of any left-handed pitcher (4th overall), and the second-most lifetime wins of any left-handed pitcher (11th overall). He was the first pitcher to win four Cy Young Awards in a career. He held the lifetime strikeout record several times between 1982 and 1984, before his contemporary Nolan Ryan passed him. One of his most remarkable records was accounting for nearly half (46%) of his team's wins, when he won 27 games for the last-place (59-97) 1972 Phillies. He is the last National League pitcher to win 25 or more games in one season, as well as the last pitcher from any team to throw more than 300 innings in a season. He also holds the record with the most career balks of any pitcher, with 90 (double the second on the all-time list, Bob Welch).