Sryia Iyer, Matt Elliott, Debopam Battacharya and Chris Rauh take up new roles from October 1.
Jordan Matsudaira is currently also serving as deputy under secretary at the department.
The micro-economist has been a professorial research fellow at the university since 2017, and was previously a professor at Monash.
The appointment has a five-year term.
She moves to the London-based institution from Middlesex University.
Adrienne Lucas is a development economist specializing in the economics of education and disease.
Andreoni returns to SOAS after previously working as a senior lecturer at the university.
Seema Jayachandran takes up a professorship at Princeton after four years at Northwestern.
The economist takes up one of five new academic posts established to address global challenges framed by the UN Sustainable Development Goals.
Theodore Papageorgiou’s research focuses on labor economics, international trade and macroeconomics.