Halovivax is a genus of extremely halophilic (salt-loving) bacteria isolated from China. The name comes from the Greek for salt, "halos", and long-lived, "vivax", so "Halovivax" translates to "long-lived salt-lover." The type species is H. asiaticus, isolated from Inner Mongolia, China. The other species recognized in the literature is H. ruber, also from Inner Mongolia. The official abbreviation accepted for Halovivax is Hvx.