HMNZS Hinau (P3556) was a inshore patrol vessel of the Royal New Zealand Navy. It was commissioned in 1985 for the Naval Volunteer Reserve and decommissioned in 2007. Hinau was the second ship with this name to serve in the Royal New Zealand Navy. The name comes from the forest tree Elaeocarpus dentatus which is native to New Zealand.
Hinau was commissioned on 4 October 1985.
As of 2025, the ship is sailing in active use (by a civilian organization not Royal New Zealand Navy) and is known as Seapatroller (Sea Patroller etc.). It patrols Cook Strait cables.