The Last Boy: Mickey Mantle and the End of America's Childhood is a non-fiction book by sportswriter Jane Leavy.

Published by HarperCollins in 2010, the book chronicles the personal struggles of Hall of Famer Mickey Mantle, who played his entire career with the New York Yankees, including his struggle with coming to terms with his stardom and his alcoholism as well as its effect on his career and family.

She wrote about Mantle's upbringing in Commerce, Oklahoma and the sexual abuse he endured at the hands of his older half-sister, his relationship with his domineering father, and his struggle with alcoholism and celebrity and his off-field activities as a player.

[1] Leavy, who was a fan of the Yankees and particularly of Mantle's, structured the book around a series of interviews she did with him in 1983, while she was a sportswriter for The Washington Post.

[2] She notably wrote about Mantle inappropriately feeling up her leg before passing out drunk in her lap and then later apologizing and giving her his sweater during a cold morning while he was golfing.