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

The forewings are fuscous whitish, irregularly sprinkled with fuscous and with a fuscous basal patch, the edge curved, dark fuscous, running from the costa near the base to the dorsum at one-fourth.

There are five small dark fuscous spots on the costa and two triangular brown spots in the disc at one-third and two-thirds, representing the stigmata, blackish edged except beneath, the anterior rather larger.

There is also an undefined fuscous suffusion towards the apex and upper part of the termen.

This article on a moth of the genus Ardozyga is a stub.