A driving assistance apparatus comprising: vehicle speed obtaining means for obtaining information indicating a vehicle speed of a vehicle; assistance condition determining means for determining whether or not an assistance activation condition, which is a condition for providing a driver of the vehicle with driving assistance, is satisfied on the basis of whether or not the vehicle speed obtained by the vehicle speed obtaining means is equal to or lower than a reference vehicle speed, and on the basis of information relating to an intersection or a preceding vehicle in front of the vehicle; driving assistance means for executing, as the driving assistance, assistance including at least one of warning issuance to the driver, braking control, and steering control when the assistance condition determining means determines that the assistance activation condition is satisfied; and traffic light detecting means for detecting the traffic light; wherein: the assistance condition determining means determines that the assistance activation condition is satisfied when the vehicle speed is equal to or lower than the reference vehicle speed, the intersection in front of the vehicle is an unsignalized intersection, which is an intersection at which a traffic light is not disposed, and a travel condition of the vehicle is such that the vehicle is stopped at the unsignalized intersection or about to enter the unsignalized intersection; characterized in that: the driving assistance apparatus further comprises sound collecting means for obtaining information relating to sounds on a periphery of the vehicle, including information relating to a sound emitted by the traffic light; the assistance condition determining means prohibits the driving assistance when the traffic light detecting means detects the traffic light within a predetermined distance of the vehicle, even if the vehicle speed is equal to or lower than the reference vehicle speed; and the traffic light detecting means detects the traffic light on the basis of the information relating to the sound emitted by the traffic light, which is included in the sound information obtained by the sound collecting means. vehicle speed obtaining means for obtaining information indicating a vehicle speed of a vehicle; assistance condition determining means for determining whether or not an assistance activation condition, which is a condition for providing a driver of the vehicle with driving assistance, is satisfied on the basis of whether or not the vehicle speed obtained by the vehicle speed obtaining means is equal to or lower than a reference vehicle speed, and on the basis of information relating to an intersection or a preceding vehicle in front of the vehicle; driving assistance means for executing, as the driving assistance, assistance including at least one of warning issuance to the driver, braking control, and steering control when the assistance condition determining means determines that the assistance activation condition is satisfied; and traffic light detecting means for detecting the traffic light; wherein: the assistance condition determining means determines that the assistance activation condition is satisfied when the vehicle speed is equal to or lower than the reference vehicle speed, the intersection in front of the vehicle is an unsignalized intersection, which is an intersection at which a traffic light is not disposed, and a travel condition of the vehicle is such that the vehicle is stopped at the unsignalized intersection or about to enter the unsignalized intersection; characterized in that: the driving assistance apparatus further comprises sound collecting means for obtaining information relating to sounds on a periphery of the vehicle, including information relating to a sound emitted by the traffic light; the assistance condition determining means prohibits the driving assistance when the traffic light detecting means detects the traffic light within a predetermined distance of the vehicle, even if the vehicle speed is equal to or lower than the reference vehicle speed; and the traffic light detecting means detects the traffic light on the basis of the information relating to the sound emitted by the traffic light, which is included in the sound information obtained by the sound collecting means. the driving assistance apparatus further comprises sound collecting means for obtaining information relating to sounds on a periphery of the vehicle, including information relating to a sound emitted by the traffic light; the assistance condition determining means prohibits the driving assistance when the traffic light detecting means detects the traffic light within a predetermined distance of the vehicle, even if the vehicle speed is equal to or lower than the reference vehicle speed; and the traffic light detecting means detects the traffic light on the basis of the information relating to the sound emitted by the traffic light, which is included in the sound information obtained by the sound collecting means.