Venom is a planet in the Star Fox universe, it is where Andross was banished after he almost destroyed Corneria. It was his base of operations and his military, but is now controlled by Anglars.
It is a death world, which is almost uninhabitable, yet there are old ruins on the surface of Venom, although it is unknown weather it was built by Andross and his minions, or was left behind by the old inhabitants. There are also military bases scattered on the surface for Andross' forces.
Venom has one race that calls it home, the Anglars, who came from the acid seas of Venom. Although Venom is their homeplanet, they were created by Andross.