The black-capped bulbul (Rubigula melanictera), or black-headed yellow bulbul, is a member of the bulbul family of passerine birds. It is endemic to Sri Lanka.
The black-capped bulbul is virtually crestless and has a yellow throat and brownish eyes. It is yellowish green above and yellow below. The tail is brownish and ends in a white tip. The male has red irides and the female has brown irides. Calls include a broad repertoire of sweet, mellow, minor-key piping whistles and sharper calls. Breeding records are from March to September.