Pteris carsei is a species of fern native to New Zealand, including the Kermadec Islands.

Originally considered a subtype of Pteris comans, the species was first formally described by Patrick Brownsey and John E. Braggins in 2020.

[4] In 2017, genetic differences were discovered between Australian specimens of P. comans and P. carsei,[5] which prompted a review of Australasian Pteris species.

[6] Pteris carsei is a medium-large fern, with fronds extending as far as 150 cm (59 in) away from the rhizome.

[3] It is found in open cliff, beachside and hillside areas, or in forest underneath Kunzea species (such as kanuka).