- Helicobacter
- Helicobacter acinonychis
- Helicobacter ailurogastricus
- Helicobacter anseris
- Helicobacter apodemus
- Helicobacter aurati
- Helicobacter baculiformis
- Helicobacter bilis
- Helicobacter bizzozeronii
- Helicobacter bovis
- Helicobacter brantae
- Helicobacter canadensis
- Helicobacter canis
- Helicobacter cetorum
- Helicobacter cholecystus
- Helicobacter cinaedi
- Helicobacter cynogastricus
- Helicobacter equorum
- Helicobacter felis
- Helicobacter fennelliae
- Helicobacter ganmani
- Helicobacter gastricaete
- Helicobacter gammari
- Helicobacter hepaticus
- Helicobacter himalayensis
- Helicobacter jaachi
- Helicobacter japonicus
- Helicobacter kayseriensis
- Helicobacter labacensis
- Helicobacter macacae
- Helicobacter marmotae
- Helicobacter mastomyrinus
- Helicobacter mesocricetorum
- Helicobacter mehlei
- Helicobacter muricola
- Helicobacter mustelae
- Helicobacter pametensis
- Helicobacter pullorum
- Helicobacter pylori
- Helicobacter rappini
- Helicobacter rodentium
- Helicobacter salomonis
- Helicobacter saguini
- Helicobacter suis
- Helicobacter suncus
- Helicobacter trogontum
- Helicobacter typhlonius
- Helicobacter valdiviensis
- Helicobacter winghamensis
- Helicobacter zalophi