Ryo Isobe (born 1978) is a Japanese writer, editor, and cultural critic whose work focuses on hip-hop, youth culture, and contemporary urban society. Through long-form reporting, interviews, and cultural criticism, he explores the social realities behind Japan's street culture and marginalized communities. His best-known book, "Rupo Kawasaki" ("Reportage: Kawasaki"), is a deeply reported work of nonfiction based on years of fieldwork in Kawasaki, portraying the lives of local young people while examining issues of poverty, inequality, identity, and community. Widely acclaimed for its nuanced perspective, it received the Shincho Documentary Award.