A collision avoidance apparatus includes a control unit that is configured to perform a collision avoidance process. The control unit determines whether or not an object is present ahead of the own vehicle. When the control unit determines that an object ahead is present, the control unit determines whether or not there is a likelihood of a collision between the object ahead and the own vehicle and whether or not a corner is present ahead of the own vehicle. When the control unit determines that a corner is not present and when a predetermined collision avoidance condition is established, the control unit is capable of changing a travelling direction of the own vehicle to avoid collision between the object ahead and the own vehicle. When the control unit determines that a corner is present, the control unit does not perform a travelling direction change of the own vehicle.