Satoshi Machidori (born 1971) is a Japanese political scientist and Professor at the Graduate School of Law, Kyoto University. His research specializes in comparative politics, American politics, Japanese politics, and political institutions, with a particular focus on democracy, political parties, legislatures, and executive leadership. Through comparative analyses of the political systems of Japan and the United States, he has made significant contributions to the study of democratic governance and institutional change. In addition to his academic research, he has written extensively for general readers, helping to deepen public understanding of democracy and political institutions through comparative political analysis.