Eusirus holmi is a species of predatory marine amphipod within the family Eusiridae.

[1][2] Eusirus holmi is a large marine amphipod, reaching a maximum length of 4 cm.

Its body is mainly white in colour, however individuals also host reddish-brown and orange highlights.

Individuals also possess well developed grasping claws on their first two pairs of legs.

The species is generally found within the waters of deep oceanic basins, where E. holmi preys on a wide variety of marine invertebrates.