Xanthostemon is a genus of plants in the myrtle family Myrtaceae, first described in 1857 by the German–born Australian botanist Ferdinand von Mueller.

The genus is distributed across Malesia, Papuasia and northern Australia.

The genera Pleurocalyptus and Purpureostemon from New Caledonia are morphologically close to Xanthostemon.

The following list includes all 48 species in this genus that are accepted by Plants of the World Online as of 3 August 2023[update] [2]