Voalavo is a mouse -like rodent species of the subfamily of Madagascar rats ( Nesomyinae ), which was first described scientifically in 1998. The two species of this genus, Voalavo gymnocaudus and Voalavo in 2005 discovered antsahabensis, are endemic to Madagascar.

The animals of this genus resemble the Bilchschwänzen ( Eliurus ) and are believed to be closely related with this. While V. gymnocaudus occurs at altitudes from 1300 to 1900 meters in the northern highlands, V. antsahabensis the east of the island is home.