Blackwall frigate was the colloquial name for a type of three-masted full-rigged ship built between the late 1830s and the mid-1870s.

Cospatrick was a wooden three-masted full-rigged sailing ship that caught fire south of the Cape of Good Hope early on 18 November 1874, while on a voyage from Gravesend, England, to Auckland, New Zealand. Only three of the 472 persons on board survived the disaster, which is often considered the worst in New Zealand's history.