Yamagata Bantō (山片 蟠桃, 1748–1821) was a well-known resident of Osaka who was both a scholar and a merchant.

[1] He was the able head clerk of the money exchange merchant Masuya.

Despite his poor eyesight, he devoted 18 years to writing the book titled "Yumenoshiro" or "Instead of Dreams" which had as many as 12 volumes.

In this book he supported the heliocentric theory, criticized the age of gods and advocated atheism.

He played a pioneering role of bringing about modern thought in Japan and helped move it forward from its age old feudal system.