Bathynomus brucei is a species of giant isopod first described in 2006.

[1] It was first located off of the coast of Australia, east of Flynn reef,[1] though the range extends from waters of south-east of Asia to waters around the north of Australia.

[2] B. brucei is the largest 'giant' member of Bathynomus, a specimen collected 400 metres below sea level measuring 154 mm (6.1 in) long.

[1] Members of the larger 'supergiant' group of Bathynomus species such as B. giganteus and B. kensleyi are known to grow to lengths of almost 20 in (510 mm).

It has a short setal fringe on the margins of the exopods, a feature only shared by B.