Eucalyptus albopurpurea, commonly known as the purple-flowered mallee box or Port Lincoln mallee, is a mallee or sometimes a tree that is endemic to South Australia. It has loose, fibrous grey-brown bark on the lower park of the trunk and smooth grey bark that is shed in strips on its upper parts. The leaves are lance-shaped to egg-shaped, the flower buds are spindle-shaped to club-shaped and the flowers are white, pink, mauve or purple. Flowering can occur in most months and the fruit are cup-shaped or barrel-shaped capsules.