Candidatus Anammoxoglobus propionicus is an anammox[1] (anaerobic ammonium oxidation) bacteria that is taxonomically in the phylum of Planctomycetota.

Anammoxoglobus propionicus is an interest to many researchers due to its ability to reduce nitrite and oxidize ammonium into nitrogen gas and water.

With the following intracellular reaction, they are able to obtain energy and function:[2] Anammox bacteria can be found in a wide range of habitats including: soils, hot springs, aquifers, lakes, marshes, and low oxygen zones.

A. propionicus has a competitive advantage in ammonium-limited natural ecosystems since they can reduce nitrate and/or nitrite to ammonium.

A 2014 experiment enriched Ca, A. propionicus within a sample of sludge from a landfill leachate anaerobic treatment system.