Rinzia oxycoccoides, commonly known as the Large flowered rinzia, is a plant species of the family Myrtaceae endemic to Western Australia.
The diffuse, sprawling or procumbent shrub typically grows to a width of 0.6m (02feet). It blooms from September to January producing pink-red flowers.
It is found on hillsides in a small area along the south coast where the Great Southern meets the Goldfields-Esperance region of Western Australia centred around the Fitzgerald River National Park where it grows in stony skeletal soils.