The Patagonian Yellow-finch (Sicalis lebruni) is a species of bird in the Thraupidae family. It is found in Argentina and Tierra del Fuego; also Chile. Its natural habitats are subtropical or tropical dry shrubland and temperate grassland.

The Patagonian Yellow-finch's range is in the southern half of Argentina, both in the eastern and central regions. To the south, the range covers the northern half of Tierra del Fuego, and the contiguous areas of extreme southern Chile.