Dahlella is a genus of leptostracan crustacean which lives on hydrothermal vents in the Pacific Ocean.

[2] Dahlella may reach a length of 8.1 mm (0.32 in) from the base of the rostrum to the end of the abdomen.

Dahlella can be distinguished from other animals in the same family by the presence of a row of denticles (small teeth) on the eyestalks, which it is believed are used to scrape surfaces for food.

[6] The generic name Dahlella commemorates the biologist Erik Dahl of the University of Lund.

The specific epithet comes from the Latin word caldaria meaning hot bath, and is a reference to the natural habitat of D.