Jacek Kugler (born March 19, 1942) is an American political scientist and scholar of International Relations.

His work on economic consequences of war, long term power transitions and political performance of nations have been widely debated within the field of international relations.

Through extensive publications on the causes and consequences of war, he has forged a reputation for innovative formal modeling and empirical analysis.

Professor Kugler is pioneering a new perspective on world politics that logically and empirically challenges well-established formulations of the realist school.

He founded the Sentia Group Inc. with Mark Abdollahian for the formal study of decision making, policy analysis and advice.