The bristled grassbird (Chaetornis striata) is a small passerine bird in the monotypic genus Chaetornis. Also known as the bristled grass warbler, this species is endemic to the Indian subcontinent, where it is patchily distributed in India, Pakistan, and Nepal. These insectivorous birds skulk in dense and tall grasslands, often in marshy areas, habitats that are threatened by human activities. Formerly considered to be sedentary, the species may be migratory, moving south and east in the Indian peninsula during winter and returning to their breeding grounds in the northern plains south of the Himalayas.