A dog flashlight illuminates the area in front of a dog in dark conditions, thereby eliminating the need for a dog owner to carry and direct a light source. The dog flashlight includes a housing containing at least one light source, a battery power supply for the light source, and a switch connected between the light source and the power supply for energizing and de-energizing the light source. When energized, the light source has sufficient brightness to illuminate the area in front of the dog so that the dog owner can observe the illuminated area for control purposes. One preferred embodiment includes an attachment device having a band carrying the housing and adapted to fit around the neck of the dog so that the housing is located in front of the chest of the dog.