Fifteen species of wood-inhabiting marine fungi recovered from intertidal wood collected in southern Chile (lat. 43°–55° S), eight Ascomycetes and seven Fungi Imperfecti, are new records for the cold temperate zone of the southern hemisphere. Three of the Ascomycete species were previously reported south of the equator from Australia and one of the Fungi Imperfecti is known from southern Brazil.Monodictys pelagica(Johnson) Jones was the most frequently collected species. The species composition of the Chilean collection is strikingly similar to the species composition of the intertidal lignicolous mycoflora of northern cold temperate waters. A distributional bipolarity is suggested for this group of "cold water" species. A review of lignicolous and algicolous marine fungi reported for the southern hemisphere is included.