Daiyu may refer to: Lin Daiyu, a character from the Chinese novel Dream of the Red Chamber Lin Daiyu (courtesan) (c. 1865 – 1925), Chinese courtesan Wang Daiyu, an Arab-Chinese scholar Daiyu Tatsumi, a former sumo wrestler Aunt Daiyu, a fictional character in the animated series Stitch & Ai Daiyu (Star Wars), a fictional planet in the Star Wars miniseries Obi-Wan Kenobi