Parablechnum howeanum, synonym Blechnum howeanum,[1] is a fern in the family Blechnaceae.

The specific epithet refers to the locality to which it is endemic.

The creeping or shortly erect rhizome has dense apical scales.

[2] The fern is endemic to Australia's subtropical Lord Howe Island in the Tasman Sea.

It grows in shaded mountain forest, especially on the summits of Mounts Gower and Lidgbird.