Sheena Elise Chestnut Greitens (born November 23, 1982) is an American political scientist currently serving as an associate professor in the Lyndon B. Johnson School of Public Affairs at the University of Texas at Austin.

[2][3] Greitens' research focuses primarily on East Asia, U.S. national security, authoritarian politics and foreign policy.

[2][7] She was previously Assistant Professor of Political Science at University of Missouri from 2015-2020 and co-director of the Institute of Korean Studies, 2017-2020.

[7] She is a participant of the Task Force on U.S.-China Policy convened by the Asia Society's Center on US-China Relations.

[9] In August 2024, Greitens was announced as the Texas National Security Review's editor-in-chief.