Ophiohamus is a genus of brittle stars in the family Ophiacanthidae from New Caledonia.

[2] Timothy D. O'Hara and Sabine Stöhr circumscribed and named the genus in 2006; they described the type species Ophiohamus nanus in the same work.

[1] A second species, Ophiohamus georgemartini, was described by O'Hara and Caroline Harding in 2015.

[3] As of 2018[update], those are the only two species recognized in this genus.

[2] The genus is distinguished from other closely related genera such as such as Ophiomitrella and Ophiurothamnus by a combination of the following characteristics:[3]