Satoshi Chiba (born 1960) is a Japanese evolutionary biologist and ecologist, and Professor Emeritus at Tohoku University. He earned his Ph.D. in Science from the University of Tokyo and held academic positions at Shizuoka University and Tohoku University, where he became one of Japan's leading scholars in evolutionary biology and ecology. His research focuses on the evolution of land snails, biodiversity, and the mechanisms of speciation, combining fieldwork with genomic analysis to explore how biological diversity arises. In addition to his academic research, he is widely recognized for making evolutionary biology accessible to general readers. His book "The Singing Snail: Evolution and the Story of the Spiral" received the Mainichi Publishing Culture Award in the Natural Sciences category. His other notable books include "The Mechanisms of Evolution," "Invited Enemies," and "Darwin's Curse."