Matt's Rock is the inner of two (other one is Young's Rock) offshore rocks traditionally known together as Young's Rocks, located near West Harbour on the western coast of Pitcairn Island. Its name is associated with Matthew Quintal, one of the mutineers of HMS Bounty. The formation has particular historical significance because it was used by local fishermen as a navigational reference point. In research published in 2017, linguist Joshua Nash documented how fishermen aligned Matt's Rock with Tanema to identify an offshore fishing ground known as Out Ha Bear. The rock is also featured in Pitcairn's 1993 Island Views postage stamp series under the name Matt's Rocks, together with Young's Rock.