The blacksmith thrush (Turdus subalaris) is a passerine bird belonging to the genus Turdus in the thrush family, Turdidae. It is native to eastern South America. It is 21 centimetres long. The male has dark greyish upperparts, a grey breast and white belly. The head is black apart from the throat which is white with dark streaks. The bill is mostly yellow. The female is mostly dull brown with few markings unlike the female of the Andean slaty thrush which has a browner version of the male's pattern. The song is high-pitched and has an unusual metallic, scraping quality.