Mogami River
was the second ship in the of high-speed protected cruisers in the Imperial Japanese Navy. Officially rated as a "tsūhōkan", meaning dispatch boat or aviso, she was named after the Mogami River in northern Honshū, Japan. Her sister ship was . "Yodo" had a clipper bow and two smokestacks, whereas "Mogami" had a straight raked bow with three smokestacks.