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- Douglas W. Rae - Equality theorist
- Mahesh Rangarajan - Indian political analyst and researcher with a focus on contemporary Indian politics and the politics of wildlife conservation in India
- R. A. W. Rhodes - Public administration scholar
- Condoleezza Rice - Former National Security Advisor, former Secretary of State. Professor at Stanford University.
- Floyd M. Riddick - Parliamentarian of the United States Senate from 1964 to 1974, and developer of Riddick's Senate procedure.
- William H. Riker - 20th century political scientist who applied game theory to political science.
- Patrick T. Riley - political theorist and Kant scholar
- David Rohde - Congress scholar
- Stein Rokkan - Expert on political parties and movements, founder of the Institute for Comparative Politics.
- Richard Rose - American political scientist, Professor of Politics at the University of Aberdeen
- Richard Rosecrance - International relations and political economy expert.
- Clinton Rossiter - American government and constitutional history theorist.
- John Ruggie - International relations theorist, social constructivist.
- John Rawls - Political philosopher.
Read more about this topic: List Of Political Scientists, Notable Political Scientists