Carex dolichophylla is a species of flowering plant in the family Cyperceae. It is a perennial herb endemic to southern Chile. It belongs to the Carex subg. Uncinia, one of the six currently recognized Carex subgenera, that corresponds to the now defunct genus Uncinia, formally transferred to Carex on 2015. The species was formerly known as Uncinia macrophylla Steud.