Libertia cranwelliae is a species of flowering plant in the family Iridaceae.

The plant was first described by Dan Blanchon, Brian Grant Murray and John E. Braggins in 2002, and is native to New Zealand.

L. cranwelliae was identified as a distinct species in 2002 due to its elongated rhizomes, smaller ovaries, alongside DNA and molecular evidence.

[2] Libertia cranwelliae consists of leafy fans that emerge from runners.

[4] Libertia cranwelliae is endemic to New Zealand, known to only occur in the Awatere and Kopuapounamu river valley areas of the East Cape of the North Island.