Mexico competed at the 1984 Summer Olympics in Los Angeles, United States.

99 competitors, 77 men and 22 women, took part in 87 events in 18 sports.

[1] In its second Olympic archery competition, Mexico entered one man and one woman.

Aurora Breton, a veteran of Mexico's first appearance in the 1972 archery competition, took ninth place.

Men's 3m Springboard One female fencer represented Mexico in 1984.