HD 23079 b, formally named Guarani, is an exoplanet approximately 109 light years away in the constellation Reticulum.

The planet takes almost exactly two years to orbit the star at the average distance of 1.6 AU.

The planet HD 23079 b is named Guarani.

The name was selected in the NameExoWorlds campaign by Brazil, during the 100th anniversary of the IAU.

The planet is named after the Guarani people.