| klebsiella michiganensis | species | | | species | 1134687 |
| klebsiella pneumoniae | species | bacteria | bacteria | species | 573 |
| klebsiella quasipneumoniae subsp. quasipneumoniae | subspecies | | | subspecies | 1667327 |
| klebsiella quasipneumoniae subsp. similipneumoniae | subspecies | | | subspecies | 1463164 |
| klebsiella variicola | species | bacteria | bacteria | species | 244366 |