Luigi Rizzi (born 3 June 1952 in Genoa) is an Italian linguist.
Rizzi is currently a full professor at the University of Siena in Italy.
Before moving to Siena, Rizzi was a full professor at the University of Geneva.
Rizzi is co-director of the journal Rivista di grammatica generativa.
His research is mainly concerned with the theory of syntax and language acquisition, and he has made a notable contribution to the theory of locality, parametric comparative syntax and the cartography of syntactic structures.