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.

Mehhiko U20 on Mehhiko jalgpallikoondis, mis esindab riiki rahvusvahelistel alla 20-aastaste võistlustel. Koondise eest on mänginud tuntud mängijad nagu Javier Hernández, Hirving Lozano ja Raúl Jiménez.