Dichomeris santarosensis is a moth in the Gelechiidae family. It was described by Hodges in 1985. It is found in Costa Rica. The length of the forewings is 5.7-7 mm. The forewings are streaked with orange, orange brown, yellowish grey and grey brown. The hindwings are grey brown, with darker and more intensely colored veins. The larvae feed on Quercus oleoides.