Seven species of agromyzid leafminers are recorded as the first representatives of this family from Laos. They include one new species, Japanagromyza laosica, and six previously described species, one belonging to the genus Melanagromyza, four to Japanagromyza, and one to Agromyza. Of these, Agromyza phragmitidis Hendel, 1922 is also newly reported from Sabah in Malaysia.