Elachista sphaerella is a moth of the Elachistidae family. It is found in the Northern Territory. The wingspan is 5.5–6.6 millimetres (0.22–0.26 in) for males and 5.8–7.3 millimetres (0.23–0.29 in) for females. The forewings are grey in males and black with a bronzy sheen and three white spots in females. The hindwings are dark grey in both sexes. The larvae have been reared on a Carex species.