The Port Denison Marina boat ramp is a public facility located in the Port Denison Foreshore Boating Precinct, accessible from Point Leander Drive in Port Denison, Western Australia, near the mouth of the Irwin River.

It serves as the primary launch point for recreational boaters heading offshore to target species such as dhufish and baldchin groper.

The ramp has been the subject of recent investment, with the Shire of Irwin receiving $365,000 in State Government grant funding toward boating infrastructure upgrades at the site.

Upgrade works — including improvements to the boat ramp and recreational jetty — were scheduled to commence in late April 2025, with the ramp temporarily unavailable to the public during the construction period.