The planet Saturn was named after Saturnus, the Roman god of agriculture, libation, and time who is associated with the Greek god Kronos.
Mercury, the Roman god who is associated with the Greek god Hermes.
Uranus is the only planet (aside from Earth) not named after a Roman divinity. Uranus is a Latinized version of Ouranos. The Roman counterpart to this Greek god was Caelos.
Mars, through a Roman god was identified by the Romans with Ares.
Mercury
The planet Jupiter is named after the roman god Jupiter, the roman counterpart of the greek god Zeus.
Neptune was the Roman version of Poseidon so planet Neptune is named after it.
In Greek Mythology, Cronus was the father of Zeus. In Roman mythology Cronus was identified with Saturn.
There is a small planet named Ceres, the Roman version of Demeter.
There is no planet named after the Greek god Zeus. However, Zeus's roman form is Jupiter, the fifth planet from the sun.
Mercury is named for the Greek god associated with thievery, travel, and business. The planet was named after him because of its fast rotation, which is in keeping with Mercury's reputation for being a speedy messenger.
The planet Neptune was named for the Roman god of water and the seas.In the original Greek language, from whence this Roman god was taken, his name was Poisedon.