Tomogashima Lighthouse (友ヶ島灯台, tomogashima tōdai) is a lighthouse on the island of Tomogashima in Wakayama, Wakayama, Japan.

Work began in May 1870. The lighthouse was first lit on August 1, 1872. It was one of the lighthouses designed by Richard Henry Brunton, who was hired by the government of Japan at the start of the Meiji period to help construct lighthouses in Japan to make it safe for foreign ships.