コリン・エルマン（Colin Elman）は、アメリカ合衆国（イギリス出身）の国際政治学者。コロンビア大学でPh.D.を取得。アリゾナ州立大学政治学部准教授を経てシラキュース大学マックスウェル行政大学院准教授。
現実主義の国際政治理論と定性的研究（qualitative research）の方法論が専門。定性的研究方法コンソーシアム（Consortium for Qualitative Research Methods, CQRM）などの活動も手がけている。
著書 共著 Realism and the Balancing of Power: A New Debate, with John A. Vasquez, (Prentice Hall, 2003).
共編著 Bridges and Boundaries: Historians, Political Scientists, and the Study of International Relations, co-edited with Miriam Fendius Elman, (MIT Press, 2001). 渡辺昭夫監訳『国際関係研究へのアプローチ――歴史学と政治学の対話』（東京大学出版会, 2003年） Progress in International Relations Theory: Appraising the Field, co-edietd with Miriam Fendius Elman, (MIT Press, 2003).
論文 "Case Study Methods in the International Relations Subfield," Comparative Political Studies, Vol. 40, No. 2, 2007. "Explanatory Typologies in Qualitative Studies of International Politics," International Organization, Vol. 59, No. 2, 2005. "Extending Offensive Realism: The Louisiana Purchase and America's Rise to Regional Hegemony," American Political Science Review, Vol. 98, No. 4, 2004. "How Not to Be Lakatos Intolerant: Appraising Progress in IR Research," International Studies Quarterly, Vol. 46, No. 2, 2002. "Lakatos and Neorealism: A Reply to Vasquez," American Political Science Review, Vol. 91, No. 4, 1997. "Diplomatic History and International Relations Theory: Respecting Difference and Crossing Boundaries," International Security, Vol. 22, No. 1, 1997. "History vs. Neo-realism: A Second Look," International Security, Vol. 20, No. 1, 1995.
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