| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Flavobacterium xueshanense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium xinjiangense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium xanthum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium weaverense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium viscosum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium vireti | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium verecundum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium ustbae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium urumqiense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium urocaniciphilum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium ureilyticum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium ummariense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium tyrosinilyticum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium tructae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium tistrianum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium tilapiae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium tibetense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium tiangeerense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium thermophilum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium terriphilum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium terrigena | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium terrae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium tegetincola | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium tangerinum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium swingsii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium suzhouense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium supellecticarium | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium suncheonense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium sufflavum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium succinicans | Unknown | Valid (ICNP) | Excubia bot over 4 years ago |