Gaétan de Rassenfosse (born 1983 in Anderlecht, Belgium) is a Belgian economist, whose research is specialized in the field of economics of innovation.

He subsequently joined Bruno van Pottelsberghe to pursue a PhD in economics at Université libre de Bruxelles.

[4][5] After receiving his PhD in 2010 de Rassenfosse joined the University of Melbourne as a research fellow, where he developed a novel way to count patents that has since been adopted by institutions such as the National Science Foundation.

His laboratory has documented the discrimination against foreigners in the patent system[9][10] and has engaged in the production of open source data.

[11][12] The laboratory's research was featured in various news outlets such as RTS,[13] Le Temps,[14] WBI,[15] and Swissinfo.