| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Lactobacillus yilanensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus yichunensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus yamanashiensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus yamanashiensis subsp. yamanashiensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus yamanashiensis subsp. mali | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus xylosus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus xiangfangensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus wuchangensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus wasatchensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus vitulinus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus viridescens | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus vini | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus vespulae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus versmoldensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus vaginalis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus vaccinostercus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus uvarum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus uli | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus tucceti | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus trichodes | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus tongjiangensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus timberlakei | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus thermotolerans | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus thailandensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus terrae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus tangyuanensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus suntoryeus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus sunkii | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus suibinensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Lactobacillus suebicus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago |