Robert Sienkiewicz is the Acting Associate Director for Research and Methodology of the U.S. Census Bureau.
In this role, Rob oversees the Research and Methodology Directorate’s research centers, each devoted to domains of investigation important to the future of social and economic statistics. The directorate collaborates with teams across the U.S. Census Bureau and with researchers around the country and the world to develop innovative scientific solutions and advances to ensure the Census Bureau remains a leader in economic and social measurement. In 2025, he was named assistant director for Research and Methodology.
Between 2019 and 2025, Rob served as the chief of the Center for Enterprise Dissemination (CED). CED assures that the Census Bureau effectively disseminates the maximum amount of high-quality data about the nation's people and economy while fully meeting the Census Bureau's legal and ethical obligation to protect the confidentiality of respondents and the information they provide. In this role, he provided executive oversight and direction to the Center for Enterprise Dissemination–Disclosure Avoidance, the Federal Statistical Research Data Centers, and the Census Enterprise Dissemination Services and Consumer Innovation. Between 2012 and 2017, Rob served as the assistant center chief for Longitudinal Employer– Household Dynamics and co-chaired the national Local Employment Dynamics partnership.
Prior to joining the Census Bureau, Rob was the deputy director of the Technology Innovation Program at the National Institute of Standards and Technology, where he directed the work of senior scientific and economic professionals making investments in high-risk, high-reward technologies. He began his career as an economist with the Maritime Administration at the U.S. Department of Transportation.
Rob has served on the faculty at Georgetown University and the Catholic University of America, where he taught managerial economics, statistics, and ethical leadership. He earned his M.B.A. from Georgetown University, his Ph.D. in economics from the Catholic University of America, and his B.A. in economics from the University of Notre Dame. He is a graduate of the Department of Commerce’s Senior Executive Service Candidate Development Program. He is the recipient of the Department of Commerce’s Silver Medal Award, a three-time recipient of the Census Bureau’s Bronze Medal Award, and a recipient of the National Institute of Standards and Technology’s George Uriano Award.