Maurice René Michel Jacob ((1933-03-28)28 March 1933 – (2007-05-02)2 May 2007) was a French theoretical particle physicist.

[3] Maurice Jacob's research focuses on the phenomenology of strong interactions, including diffraction, scaling, high-transverse-momentum processes and the formation of quark–gluon plasma.

[4][5] In particular, he pioneered the studies of inclusive hadron-production processes, including scaling and its violations.

[7][8] Maurice Jacob played a key role in bringing together different groups from the experimental and theoretical nuclear and particle physics communities to initiate an ultrarelativistic heavy-ion collision program at the CERN SPS, in order to search for the quark-gluon plasma.

[11] He was a corresponding member of the Academy of Sciences from 1977, member of the Swedish Royal Academies, Academia Europaea and also scientific advisor to the European Space Agency[12] Maurice Jacob was married to Lise Jacob.