The Otway Range Assassin Spider (Zephyrarchaea porchi) is a species of spider in the family Archaeidae.

[1][2] The holotype for the species was collected near the Cape Otway Lighthouse by Dr. Nicholas Porch.

The species-specific name is a patronym in his honor.

The only known specimen was caught in a eucalypt forest with a dense bracken fern understory.

[1] The abundance of protected forests near the type locality suggest that the spider is unlikely of meriting conservation concern.