In taxonomy, Methanohalophilus is a genus of the Methanosarcinaceae.

[1] The species are strictly anaerobic and live solely through the production of methane, using methyl compounds as substrates.

The genus Methanohalophilus contains three moderately halophilic species, Methanohalophilus mahii isolated from Utah's Great Salt Lake in the United States, Methanohalophilus halophilus isolated from Shark Bay in Australia, and Methanohalophilus portucalensis isolated from a salt pan in Portugal.

[3] The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)[4] and National Center for Biotechnology Information (NCBI).

[1] M. levihalophilus M. portucalensis M. halophilus M. mahii M. levihalophilus Katayama et al. 2014 "M. euhalobius" (Obraztsova et al. 1987) Davidova et al. 1997 M. portucalensis Boone et al. 1993 M. halophilus (Zhilina 1984) Wilharm et al. 1991 M. mahii Paterek & Smith 1988 M. profundi L'Haridon et al. 2021 This Euryarchaeota-related article is a stub.