Dioxys may refer to:
*
''Dioxys'' (bee), a genus of bees in the family Megachilidae
*
''Dioxys'' (alga), a genus of algae in the family
Characiopsidaceae
Characiopsidaceae is a family of algae
Algae (; singular alga ) is an informal term for a large and diverse group of photosynthetic eukaryotic organisms. It is a polyphyletic grouping that includes species from multiple distinct clades. Incl ...
{{Genus disambiguation