Ornativalva acutivalva is a moth of the Gelechiidae family. It was described by Sattler in 1976. It is found in Mongolia. The wingspan is 5-6 mm. The costal half of the forewings is mostly dark brown, the dorsal half ochreous. The dark area distally is narrower, not reaching the apex, barely reaching the fold. Projections of the dark area touch the fold at one-third and two-thirds without crossing it. There are small dark dots in the cell and at the end of the cell in the ochreous area but connected with the dark area. Adults have been recorded on wing in July.