The Mexico national under-20 football team represents Mexico in association football at the under-20 age level, and is controlled by the Mexican Football Federation (FMF), the governing body of football in Mexico.

The team has won the CONCACAF Under-20 Championship a record thirteen times across its various formats. Mexico's best finish came at the 1977 FIFA World Youth Championship finishing as runners-up, the first edition of a FIFA-sanctioned youth tournament. They also managed a third-place finish at the 2011 edition.

Mexikó U20-as válogatottja Mexikó 20 év alatti labdarúgó-válogatottja, melyet a Mexikói labdarúgó-szövetség irányít.