Azoarcus olearius is a species of bacteria.

It is a nitrogen-fixing bacteria.

[1] Its cells are Gram-negative, motile and rod-shaped, surrounded by a thin capsule.

Its type strain is DQS-4T (=BCRC 80407T =KCTC 23918T =LMG 26893T).

This Betaproteobacteria-related article is a stub.