Pandanus tenuifolius ("Vacoa chevron") is a species of plant in the family Pandanaceae.

The fruit heads are small (diameter 7–12 cm), rounded and each bears only 15-45 drupes.

The exposed tip of each drupe is a smooth, rounded shape, and it ripens to a uniform, dark red colour.

It is found mainly in small groups on the higher mountains and valley slopes of the island, where it shares its habitat with the other endemic Pandanus species, the more robust Pandanus heterocarpus.

Inhabitants of the island use the leaves of both species for the fibres, and for making roofs, hats or baskets.