The Javan blue robin (Myiomela diana) is a species of bird in the family Muscicapidae. It is endemic to the Indonesian island of Java. Its natural habitat is subtropical or tropical moist montane forests. The Sumatran blue robin (Myiomela sumatrana) was formerly considered a subspecies of M. diana, with both the Javan and Sumatran subspecies being grouped under the name Sunda robin.
