Takehiko Kojima (born 1959) is a Japanese editor and historical researcher. Born in Gunma Prefecture, he graduated from Gakushuin University and has edited and written books on history, literature, and music, including the published edition of the official chronicle of Emperor Shōwa. His representative work, "Kokka to Hankokka," compares the national anthems of the United States, China, and Britain with songs that carried popular memory, mourning, and resistance. By tracing the histories of "The Star-Spangled Banner" and "Aloha ʻOe," China’s national anthem and "When Will You Return?," and "God Save the Queen" and "Auld Lang Syne," the book examines how music became entangled with state formation, war, colonial rule, revolution, and modern Japanese history.