John Sheldon Cumberland, born May 10, 1947, in Westbrook, Maine, is a former Major League Baseball (MLB) pitcher whose career spanned from the late 1960s to the mid-1970s. Cumberland, a left-handed pitcher, made his MLB debut on September 5, 1968, with the New York Yankees. Over the course of his professional career, he played for several teams, including the Yankees, the San Francisco Giants, the St. Louis Cardinals, and the California Angels.

Cumberland's tenure with the Yankees was brief, as he was traded to the San Francisco Giants in 1970. It was with the Giants that he had some of his most productive seasons. During his time in San Francisco, Cumberland was primarily used as a starting pitcher, a role in which he showed promise and effectiveness. His performance during these years was highlighted by a notable improvement in his earned run average (ERA) and strikeout-to-walk ratio, showcasing his ability to control the game and manage opposing hitters.

In 1974, Cumberland was traded to the St. Louis Cardinals, where he played for a short period before moving to the California Angels. His stint with the Angels marked the end of his MLB playing career. Throughout his career, Cumberland's pitching was characterized by his left-handed delivery and his ability to use a mix of pitches to outsmart batters. Despite facing challenges, including injuries and transitions between teams, he managed to contribute significantly to his teams' pitching staffs.

After his playing career ended, Cumberland did not stray far from baseball. He transitioned into coaching, where he utilized his experience and knowledge of pitching to mentor young players. His post-playing career has included various coaching positions within minor and major league organizations, where he has continued to impact the game of baseball.

John Cumberland's MLB career, while not hallmarked by overwhelming fame or record-breaking achievements, was marked by steady contributions to his teams and a transition into a respected coaching role post-retirement. His journey through professional baseball reflects the path of a dedicated athlete who leveraged his skills and passion for the game into a lifelong involvement in the sport.