Ultramafic zoned intrusions, also known as Ural-Alaskan (UA) type intrusions, seem to be particularly associated with the Pacific Rim (Fig. 1), near the oceanic/continental plate boundary, where they occur in Alaska, British Colombia, the Russian Far East, Colombia, Philippines, Papua New Guinea, New Caledonia, Eastern Australia and New Zealand. UA intrusions also occur in the Urals (Russia), Ethiopia and Egypt.The key economic importance of UA intrusions is the existence of metallic platinum (mainly isoferroplatinum). Being very dense and resistant to erosion, metallic platinum can form rich placers as the intrusion erodes. The most productive alluvial platinum deposits in the world are associated with UA complexes. CITATION: Nazimova, Y and Ryan, G, 2019. Platinum potential of the Pacific Rim in connection with ultramafic zoned intrusions, in Proceedings PACRIM 2019, pp 189191 (The Australasian Institute of Mining and Metallurgy: Melbourne).