ピーター・カッツェンスタイン（Peter Joachim Katzenstein, 1945年2月17日 - ）は、アメリカ合衆国在住の政治学者、コーネル大学政治学部教授。アメリカ芸術科学アカデミー会員。専門は、比較政治、政治経済学、国際関係論。
西ドイツ・ハンブルク生まれ。スワースモア大学卒業後、ロンドン・スクール・オブ・エコノミクスで修士号、ハーヴァード大学で博士号取得。1973年からコーネル大学で教える。アメリカ政治学会会長（2008年‐2009年）の他、プリンストン高等研究所やスタンフォード大学行動科学高等研究センターなどにて研究員を務めた。2020年ヨハン・スクデ政治学賞受賞。
著書 単著 Disjoined Partners: Austria and Germany since 1815, (University of California Press, 1976). Corporatism and Change: Austria, Switzerland, and the Politics of Industry, (Cornell University Press, 1984). Small States in World Markets: Industrial Policy in Europe, (Cornell University Press, 1985). Policy and Politics in West Germany: the Growth of a Semisovereign State, (Temple University Press, 1987). Cultural Norms and National Security: Police and Military in Postwar Japan, (Cornell University Press, 1996). 有賀誠訳『文化と国防――戦後日本の警察と軍隊』（日本経済評論社, 2007年） A World of Regions: Asia and Europe in the American Imperium, (Cornell University Press, 2005). 光辻克馬・山影進訳『世界政治と地域主義――世界の上のアメリカ、ヨーロッパの中のドイツ、アジアの横の日本』（書籍工房早山、2012年） Rethinking Japanese Security: Internal and External Dimensions, (Routledge, 2008).
共著 Beyond paradigms: analytic eclecticism in the study of world politics, Rudra Sil and Peter J. Katzenstein, Palgrave Macmillan, 2010.
編著 Between Power and Plenty: Foreign Economic Policies of Advanced Industrial States, (University of Wisconsin Press, 1978). Industry and Politics in West Germany: toward the Third Republic, (Cornell University Press, 1989). The Culture of National Security: Norms and Identity in World Politics, (Columbia University Press, 1996). Mitteleuropa: between Europe and Germany, (Berghahn Books, 1997). Tamed Power: Germany in Europe, (Cornell University Press, 1997). Civilizations in world politics: plural and pluralist perspectives, edited by Peter J. Katzenstein, Routledge, 2010. Anglo-America and its discontents: civilizational identites beyond West and East, edited by Peter J. Katzenstein, Routledge, 2012. Sinicization and the rise of China: civilizational processes beyond East and West, edited by Peter J. Katzenstein, Routledge, 2012.
共編著 Comparative Public Policy: A Cross-national Bibliography, co-edited with Douglas E. Ashford and T. J. Pempel, (Sage, 1978). Territorial Politics in Industrial Nations, co-edited with Sidney Tarrow and Luigi Graziano, (Praeger, 1978). Comparative Theory and Political Experience: Mario Einaudi and the Liberal Tradition, co-edited with Theodore Lowi and Sidney Tarrow, (Cornell University Press, 1990). Network Power: Japan and Asia, co-edited with Takashi Shiraishi, (Cornell University Press, 1997). Exploration and Contestation in the Study of World Politics, co-edited with Robert O. Keohane and Stephen D. Krasner, (MIT Press, 1999). Rethinking Security in East Asia: Identity, Power, and Efficiency, co-edited with J. J. Suh and Allen Carlson, (Stanford University Press, 2004). Anti-americanisms in World Politics, co-edited with Robert O. Keohane, (Cornell University Press, 2006). Beyond Japan: the Dynamics of East Asian Regionalism, co-edited with Takashi Shiraishi,(Cornell University Press, 2006). Rethinking security in East Asia: identity, power, and efficiency, edited by J. J. Suh, Peter J. Katzenstein, and Allen Carlson, NUS Press, 2008. European identity, edited by Jeffrey T. Checkel and Peter J. Katzenstein, Cambridge University Press, 2009.
外部リンク USC Center on Public Diplomacy Profile Interview with Peter Katzenstein by Theory Talks Public lecture on "Why the Clash of Civilizations is wrong"