Reig's tuco-tuco (Ctenomys osvaldoreigi) is a species of rodent in the family Ctenomyidae.

[2] It is endemic to central Argentina, where it is known only from a grassland location in Cordoba Province at an elevation above 2000 m in the Sierras Grandes.

[1] The species is threatened by disruption of its habitat by fire and sheep grazing.

[1] It is named after Argentine biologist Osvaldo Reig (1929–1992).

This article about a rodent is a stub.