Dichomeris quadrata is a moth in the Gelechiidae family. It was described by Park and Ponomarenko in 1998. It is found in Thailand. The wingspan is 14.5-15.5 mm. The forewings are light brown, with irregularly scattered dark brown scales. The postmedian line is found at four-fifth of the wing and is edged with yellowish orange scales outwardly. The outer area is dark brown and there are three short lines of brown scales inwardly. The hindwings are grey.