The Grosbeak Bunting, Wilkins's Bunting or Wilkins's Finch (Nesospiza wilkinsi) is a species of bird in the Emberizidae family. It is restricted to Inaccessible Island (subspecies dunnei) and Nightingale Island (nominate wilkinsi), Tristan da Cunha, part of the British overseas territory of Saint Helena in the South Atlantic Ocean.

Its natural habitats are temperate shrubland and subantarctic grassland.