Nothomyrcia is a genus of flowering plants in the family Myrtaceae.
The sole species in the genus is Nothomyrcia fernandeziana.
[2] It is a tree endemic to Robinson Crusoe Island in the Juan Fernández Islands of Chile.
[3] It is a dominant species in its habitat of lowland dry forests and lower montane forests.
Its extent has declined through the effects of feral animals, introduced weeds, and soil erosion to a preliminary estimate of less than 100 km2.