Dichomeris tenextrema is a moth in the Gelechiidae family. It was described by Li, Zhen and Mey in 2013. It is found in Kenya. The wingspan is about 12.5 mm. The basal two-fifths of the forewings is dark brown and the distal three-fifths greyish brown. There is a yellow spot at the distal one-third of the costal margin and an inconspicuous dark brown fascia from the costal three-fourth to near the tornus. The hindwings are greyish brown.