Gunnar Trumbull is an Associate Professor at the Harvard Business School, where he teaches in the Business, Government, and the International Economy area. Trumbull graduated from Harvard College in 1991 and earned a Ph.D. in political science from M.I.T. in 1999. He has been a Jean Monnet Fellow at the European University Institute, and a Research Associate at the Brookings Institution. He joined the Harvard Business School faculty in 2001.

Trumbull is the author of two books. Consumer Capitalism: Politics, Product Markets, and Firm Strategy in France and Germany (2006) explores the political roots of consumer protection policies that emerged in France and Germany beginning in the 1970s. Silicon and the State: French Innovation Policy in the Internet Age (2004) traces France's policy response in the late-1990s to the apparent success of the Silicon Valley model of technology innovation.

Trumbull is a faculty associate at the Center for European Studies, a member of the American Political Science Association, and a member of the Society for the Advancement of Socio-Economics.