Mercury and Venus do not have any natural satellites.

The only planets in our solar system that do not have natural satellites are Mercury and Venus.

Within our solar system, planets other than Earth with natural satellites are Mars, Jupiter, Saturn, Uranus, and Neptune. Other solar system objects also have moons; Mercury and Venus notably do not.

There are only two planets within our solar system that have no natural satellites (i.e. moons). They are Venus and Mercury; all other planets have at least one moon.

Of the eight true planets in the Solar System, only Mercury and Venus are lacking natural satellites.