Ardozyga tetralychna is a species of moth in the family Gelechiidae.

It is found in Australia, where it has been recorded from Victoria and New South Wales.

The forewings are dark fuscous, with a slight purplish tinge and a small yellow-ochreous spot at the base in the middle.

The stigmata are small, white, the plical obliquely beyond the first discal.

There is a row of small white dots around the posterior part of the costa and termen.