Position in a system
| system | Vitae - living organisms |
| domain | Bacteria (Haeckel, 1894) Woese, Kandler Wheelis, 1990 - bacterians |
| phylum | Firmicutes |
| class | Bacilli Ludwig et al., 2010 |
| order | Lactobacillales Ludwig et al., 2010 |
| family | Enterococcaceae |
| genus | Enterococcus (ex Thiercelin & Jouhaud, 1903) Schleifer & Kilpper-Bälz, 1984 |
| species | Enterococcus faecalis (Orla-Jensen 1919) Schleifer & Kilpper-Bälz 1984 |