| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Wolbachia persica | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wolbachia melophagi | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Winogradskyella marina | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Winogradskyella luteola | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Williamsia soli | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Williamsia aurantiacus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wielerella | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wielerella bovis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wenjunlia | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wenjunlia vitaminophila | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wenjunlia tyrosinilytica | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Weizmannia faecalis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Weissella kimchii | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Weissella jogaejeotgali | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Weeksella zoohelcum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wautersia taiwanensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wautersia respiraculi | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wautersia paucula | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wautersia oxalatica | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wautersia numadzuensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wautersia metallidurans | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wautersia gilardii | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wautersia eutropha | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wautersia campinensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wautersia basilensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wangia | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wangia profunda | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wagnerdoeblera | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wagnerdoeblera nectariphila | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Wagnerdoeblera megaterium | Unknown | Valid (ICNP) | Excubia bot over 1 year ago |