''Blachia'' is the scientific name for two genera of organisms and may refer to:
*
''Blachia'' (bug), a stink bug genus in the subfamily
Asopinae
Asopinae are a subfamily of stink bugs (family Pentatomidae). They are predatory stink bugs that are useful as biological control agents against pests, even against other Pentatomid species, which are all herbivorous.
Genera
# '' Afrius'' ...
*
''Blachia'' (plant), a genus of plant in the family Euphorbiaceae
{{genus disambiguation