The dull-blue flycatcher (Eumyias sordida) is a small passerine bird in the flycatcher family, Muscicapidae. This species is an endemic resident breeder in the hills of central Sri Lanka. The dull-blue flycatcher breeds in deciduous mountain forest, invariably above 600m, although it is not common below 900m. The main breeding season is in March and April, but a second brood is often reared later in the year. Juvenile dull-blue flycatchers are brown, heavily spotted on the head, back, wing-coverts and breast with pale buff; their flight feathers are broadly edged with blue-grey.