See text Gracilechinus is a genus of sea urchins in the family Echinidae.

The species in this genus are regular sea urchins, with a rounded test, bearing the anus at the top and the mouth at the bottom.

They are extremely similar to species in the genus Echinus, but are differentiated by a primary tubercle on every interambulacral plate.

[1] Most species in this genus are abyssal, and live in the North Atlantic or close cold seas.

Species in this genus include:[2]