Ha
Haackgreerius Greer & Haacke, 1982
- Haackgreerius miopus Greer & Haacke, 1982
Reptilia → Squamata → Scincidae
Haasiasaurus Polcyn, Tchernov & Jacobs, 1999 †
- †Haasiasaurus gittelmani Polcyn et al. 1999
Reptilia → Squamata → Sauria → Lacertilia → Mosasauroidea → Mosasauridae
- Haemodracon
- Haitiophis
- Hakaria
- Hapsidophrys
- Hardella
- Harpesaurus
- Harrisoniascincus
He
- Helicops
- Heliobolus
- Hellenolacerta
- Helminthophis
- Heloderma
- Helodermatidae
- Helophis
- Hemachatus
- Hemerophis
- Hemiaspis
- Hemibungarus
- Hemicordylus
- Hemidactylus
- Hemiergis
- Hemiphyllodactylus
- Hemirhagerrhis
- Hemisphaeriodon
- Hemitheconyx
- Hemorrhois
- Heosemys
- Hesperoedura
- Heterodactylus
- Heterodon
- Heteroliodon
- Heteronotia
- Heurnia
Hi
Hierophis Fitzinger, 1834
- Hierophis andreanus (Werner, 1917)
- Hierophis gemonensis (Laurenti, 1768), Šara poljarica (balkanska poljarica)
- Hierophis spinalis (Peters, 1866)
- Hierophis viridiflavus (Lacépède, 1789), Crna poljarica (žuto-zeleni guž)
- Hierophis viridiflavus carbonarius (Bonaparte, 1833)
- Hierophis viridiflavus viridiflavus (Lacépède, 1789)
Reptilia → Squamata → Colubridae
Ho
- Holaspis
- Holbrookia
- Holcosus
- Holodactylus
- Hologerrhum
- Homalopsidae
- Homalopsis
- Homonota
- Homopholis
- Homopus
- Homoroselaps
- Hoplocephalus
- Hoplocercidae
- Hoplocercus
- Hoplodactylus
- Hormonotus
Hu
Huaxiagnathus Hwang, Norell, Ji & Gao, 2004 †
- †Huaxiagnathus orientalis Hwang et al. 2004
Reptilia → Avetheropoda → Coelurosauria → Compsognathidae
Hy
- Hydrablabes
- Hydraethiops
Hydrelaps Boulenger, 1896
- Hydrelaps darwiniensis Boulenger, 1896
Reptilia → Squamata → Colubroidea → Elapidae → Hydrophiinae
- Hydrodynastes
- Hydromedusa
- Hydromorphus
- Hydrophis
- Hydrops
- Hydrosaurus
- Hypnale
- Hypoptophis
- Hypsicalotes
- Hypsiglena
- Hypsilurus
- Hypsirhynchus