HMNZS Kahu (A04) was a Moa-class inshore patrol vessel of the Royal New Zealand Navy.

As a diving tender she participated in the exploration and salvage work of the wreck MS Mikhail Lermontov in March 1986.

[1] On 17 May 1988, she was renamed Kahu (A04) and recommissioned as the basic seamanship and navigation training vessel attached to the Royal New Zealand Naval College.

She remained in service for seamanship, Officer of the Watch training and as a backup diving tender until her decommissioning on 30 October 2009.

[3] In 2021 the vessel was involved in a £160,000,000 drugs bust when she was intercepted by HMC Searcher 130 km off the coast of Plymouth.