It is possible for any of he gas giants to have them, it is commonly Jupiter or Saturn which the clouds are related to.
Jupiter
Mercury, which has no atmosphere to speak of either. (Technically, this is not quite true: Mercury does have an atmosphere, it's just very very thin.)
Saturn's atmosphere consists mainly of hydrogen, helium, and trace amounts of methane, ammonia and other gases. This planet has bands of clouds in its atmosphere. However, these cloud layers are arranges in three different layers called cloud decks. Above theses clouds is a haze layer.
No part of the atmosphere of any planet is any part of the Oort cloud.
stratus
Rhiannon Price
Gravity is the force that keeps an atmosphere in place, surrounding a planet. Since there is no actual roof or container holding in the atmosphere, gas can always leak away into outer space, if it is not held in place by gravity. So the stronger the gravitational force, the more atmosphere can be retained. Large planets have a lot of hydrogen in their atmosphere, but hydrogen leaks away from smaller planets. Large planets attracted more gas when they were originally formed, as well. Remember that the solar system itself, and everything in it, originally condensed out of an interstellar cloud of gas and dust.
Cirrus cloud belongs to the atmosphere layer.
cumulus
From a distance, in visible light observations, Saturn's atmosphere looks more boring than Jupiter. Saturn has cloud bands in its atmosphere, but they're pale orange and faded. This orange color is because Saturn has more sulfur in its atmosphere. In addition to the sulfur in Saturn's upper atmosphere, there are also quantities of nitrogen and oxygen.
The most important process of cloud formation in the atmosphere is? In: Earth SciencRead more: The_most_important_process_of_cloud_formation_in_the_atmosphere_is
They say the origin of the planets was believed to be formed out of the cloud from which the sun condensed