Y: The Last Man is a post-apocalyptic science fiction graphic novel series written by Brian K. Vaughan. It tells the story of Yorick Brown, the last surviving human with a Y chromosome, and his journey to find his girlfriend and discover the cause of the global gendercide. The series explores themes of gender, identity, and the nature of humanity in a world without men. With its thought-provoking premise and complex characters, Y: The Last Man is a must-read for fans of post-apocalyptic fiction.