Hirokazu Miyazaki was born in Tokyo and was originally trained in anthropology in Japan and at the Australian National University, where he earned a Ph.D. as a specialist of Fiji and the Pacific Islands. Miyazaki subsequently contributed to the formation of the interdisciplinary field of the social studies of finance. His current research focuses on the history of citizen diplomacy for peace and the world without nuclear weapons. In February 2018, Miyazaki was appointed by the Mayor of Nagasaki as a Peace Correspondent for Nagasaki.