Hollrungia is a genus in the family Passifloraceae, represented by a single species, Hollrungia aurantioides. It is native to in Papua New Guinea, West Papua and northern Queensland. It is currently under debate as to taxonomic treatment due to close genetic relationship to Passiflora species. It is a dioecious liana climbing to 10 m on rainforest tree species. The leaves are large, 10–30 cm long. The flowers are inconspicuous, and the fruit usually green and smooth, 5–10 cm long.