Think Tank Row designates the cluster of think tanks that are located on or around Massachusetts Avenue NW in Washington DC, between Thomas Circle and Dupont Circle. The expression is a reference to Millionaire Row and Embassy Row, past and present designations for the same area (both actually extending further northwest on Massachusetts Avenue).
James McGann has been credited for coining the expression "Think Tank Row," which has been used in various media articles referring to think tanks.
Think tanks on Think Tank Row include:
Also on Think Tank Row are several academic institutions that occasionally interact with think tanks:
Other nearby think tanks include the Atlantic Council, the German Marshall Fund, Resources for the Future, and the New America Foundation. The Cato Institute and Heritage Foundation are also located on Massachusetts Avenue, but at some distance from Think Tank Row.