Elachista alicanta is a moth of the Elachistidae family. It is found in southern Spain. The habitat consists of xerothermic steppe slopes on calcareous soil. The length of the forewings is 5–5.5 millimetres (0.20–0.22 in) for males and 4–4.5 millimetres (0.16–0.18 in) for females. The forewings are narrow. The ground colour appears mottled grey due to basally greyish white and distally dark grey-tipped scales. The hindwings are grey with a concolorous fringe.