Masataka Miyanaga (born 1960) is a Japanese music critic, producer, editor, and author best known for his expertise on The Beatles. Born in Kanazawa, Ishikawa Prefecture, he graduated from Waseda University and began his career as an editor for Ribon, a leading manga magazine published by Shueisha. After leaving publishing, he worked as a producer on projects by manga artist Momoko Sakura before establishing himself as one of Japan's foremost Beatles scholars. Through his long-running lecture series "Beatles University," magazine columns, television and radio appearances, and public lectures, he has explored the band's music, history, and cultural legacy from both Japanese and international perspectives. In Beatles in Japan: Testimonies from Those Who Met the Fab Four in 1966 (2016), he presents a meticulously researched account of the Beatles' historic visit to Japan and its lasting impact on Japanese popular culture.