The Mathematics Institute of Jussieu–Paris Rive Gauche (French: Institut de mathématiques de Jussieu–Paris Rive Gauche, pronounced [ɛ̃stity də matematik də ʒysjø paʁi ʁiv ɡoʃ], IMJ-PRG) is a French research institute in fundamental mathematics.

The IMJ-PRG is the largest research unit linked to the doctoral school of mathematical sciences of Paris center (École doctorale de sciences mathématiques de Paris-Centre).

[2] Each year since 2001, the institute organizes an international summer school dedicated to a hot topic in current mathematical research.

The institute is one of the founding members of the Research Federation in Mathematics of Paris Center (Fédération de recherche en mathématiques de Paris centre).

Several members of the IMJ-PRG received national and international awards for their research.