Abstract: To effectively prevent a driver from being annoyed, provided is a driving assistance device (1) including: a target acquisition unit (30) configured to acquire a target existing in a periphery of an own vehicle; and a control unit (10) configured to execute, when the target acquired by the target acquisition unit (30) is determined as an object to be avoided which is highly likely to collide with the own vehicle, collision avoidance control of controlling travel of the own vehicle such that the collision between the own vehicle and the object to be avoided is avoided. The control unit (10) is configured to suppress the collision avoidance control when a specific target (ST) is detected between the own vehicle and the object to be avoided, and a positional relationship among the specific target (ST), the object to be avoided, and the own vehicle satisfies a predetermined condition.