Zoghman Mebkhout (born 1949[1] ) (زغمان مبخوت) is a French-Algerian mathematician.

In September 1979 Mebkhout presented the Riemann–Hilbert correspondence,[3] which is a generalization of Hilbert's twenty-first problem to higher dimensions.

The original setting was for Riemann surfaces, where it was about the existence of regular differential equations with prescribed monodromy groups.

[8] In his quasi-autobiographical text Récoltes et semailles Alexander Grothendieck wrote extensively about what he for a time thought of as gross mistreatment of Mebkhout, in particular in the context of attribution of credit for the formulation and proof of the Riemann-Hilbert correspondence.

However, in May 1986, after being contacted by a number of mathematicians involved in the matter, Grothendieck retracted his former viewpoints (that had been based on direct testimony of Mebkhout) in a number of additions to the manuscript, which for some reason were not included in the eventually published version of the book.