| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Flavobacterium subsaxonicum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium suaedae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium stagni | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium squillarum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium spartansii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium soyangense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium soli | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium sinopsychrotolerans | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium silvisoli | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium sharifuzzamanii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium seoulense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium segetis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium sediminis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium sediminilitoris | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium sasangense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium sangjuense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium sandaracinum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium salmonis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium saliperosum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium salilacus subsp. salilacus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium salilacus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium salilacus subsp. altitudinum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium saccharophilum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium rivuli | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium riviphilum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium rhamnosiphilum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium restrictum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium resistens | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium reichenbachii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Flavobacterium ranwuense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago |