Klaus Felix Zimmermann (born December 2, 1952) is a German economist and emeritus professor of economics at Bonn University. Additionally, he is an honorary professor at Maastricht University, the Free University of Berlin and the Renmin University of China as well as president of the Global Labor Organization.[1] His research interests include population, labour, development and migration, with Zimmermann being among the leading economists on the topic of migration.[2]