Incest is defined as sexual relations between close blood relatives. Many psychiatric disorders may occur after incest in children, but sleepwalking due to sexual abuse is a rare condition. Sleepwalking, a type of parasomnias, is characterized by sudden motor movements that occur during the first third of the night. Sleepwalkers may get up and walk around during sleep and they cannot usually remember the episodes in the morning. In this paper, an eight-year-old girl developed sleepwalking after being sexually abused by her father has been discussed. [Anadolu Psikiyatri Derg 2017; 18(2.000): 188-190]