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.

Mexicos U20-fodboldlandshold er det nationale fodboldhold under 20 år af Mexico. Det styres af det mexicanske fodboldforbund og repræsenterer Mexico i internationale fodboldkonkurrencer i den FIFA-anerkendte ungdomskategori, som er under 20 år. Holdet er en af de mest succesfulde i regionen, har vundet det nordamerikanske U20-mesterskab 13 gange og har været med ved FIFA U20 World Cup 16 gange.