My Beautiful Girl, Mari (Korean: 마리 이야기, Mari Iyagi, 2002), also known as My Beautiful Girl Mari, is a critically successful South Korean animated film. It follows the story of a young boy during summer vacation and ascends into flights of surrealistic fantasy, which may or may not be dream sequences.

Kim Nam-woo struggles through life as people around him constantly leave him; his best friend, Jun-ho, is going to study in Seoul and in some ways his widowed mother is "leaving" him too by paying more attention to her new boyfriend. To escape, he goes to a dream world, where he meets a girl named Mari. The story follows Nam-woo in discovering himself and maturing.