Geoffroy's saddle-back tamarin (Leontocebus nigrifrons) is a species of saddle-back tamarin, a type of small monkey from South America.

[1] It lives in groups with multiple males and females.

[1] Both males and females emigrate from their natal group.

[1] Its diet consists of fruits, gums, nectar, insects and other small animals.

[1] The IUCN rates it as least concern from a conservation standpoint.