Ramin Toloui Tehrani is an American academic, civil servant, and financial advisor who most recently served as Assistant Secretary of State for Economic and Business Affairs in the Biden Administration.

Previously, Toloui held a variety of jobs at the Department of the Treasury, including Director of the Office of the Western Hemisphere from 2003 to 2006, Senior Adviser to the Under Secretary for International Affairs from 2001 to 2003, and Deputy Director and International Economist in the Office of Central and Southeastern Europe from 1999 to 2001.

[citation needed] Toloui was confirmed by the United States Senate on November 20, 2014, to serve as Assistant Secretary of the Treasury for International Finance and Development.

[6] In this position, Toloui was responsible for leading the department's work on international monetary affairs, coordination with the G-20, and regional and bilateral economic issues.

Since leaving the Treasury Department, Toloui has worked as a professor of international finance and fellow at the Stanford Institute for Economic Policy Research.