Newzealandia is a genus of land planarians from New Zealand.

Species of the genus Newzealandia are characterized by a copulatory apparatus that lacks a penis papilla and has a series of accessory glands embedded into the wall of the atrial cavity.

[1] Those glands are similar to the adenodactyls found in the closely related genus Artioposthia, the main difference being that adenodactyls project into the atrial cavity.

[2] The name Newzealandia comes from New Zealand, the country in which the species of the genus are found.

The genus Newzealandia includes the following species: