The planets that rotate in retrograde motion (spinning in the opposite direction to their orbit around the Sun) are:

* Venus

* Uranus

It's worth noting that:

* Venus rotates extremely slowly, taking 243 Earth days to complete one rotation. This is longer than its orbital period around the Sun (225 Earth days).

* Uranus rotates on its side, almost parallel to its orbital plane. This is thought to be due to a massive collision early in the Solar System's history.