Liopelma Hamiltoni, commonly known as the Hamilton's frog, is a unique and rare species of frog found only in New Zealand. As with all species, Hamilton's frog has synonyms that are often used interchangeably. These synonyms include Leiopelma hamiltoni, Brown's frog, and the kupukupu. Despite its small size and seemingly insignificant appearance, the Hamilton's frog is an important species for maintaining the ecosystem of its natural habitat. Unfortunately, the Hamilton's frog is also endangered due to habitat loss and predation from introduced mammals. Efforts to protect and conserve this species are ongoing, and knowing its various synonyms can aid in research and communication about conservation efforts.