Qutuqtu (Chinese: 忽覩都, Mongolian: Хутагт) was the second son of Tolui and Lingqun Khatun (daughter of Kuchlug). He was the grandson of Genghis Khan.[1] Although he took part in Ogedei Khan's invasion of Song,[2] Qutuqtu was killed in battle against the Song general Meng Yu (孟珙).