An illuminated golf club head defines a cavity and includes a top surface and a face for impacting a golf ball during a swing. A light is mounted at the top surface, and a power source for energizing the light is disposed within the cavity and electrically connected to the light. A switch is mounted within the cavity and electrically connected to the light and battery to form an electrical circuit. In an embodiment, the switch closes, completing the circuit and momentarily illuminating the light, upon impact of the face with a golf ball. In another embodiment, the switch closes to momentarily illuminate the light upon impact of a golf ball at approximately the center of the face.