In planetary classification, a class 7 gas giant is a type of gas giant planet. At least some of them were hard to distinguish visually from a Class 6 gas giant.

In 2151, the crew of the Enterprise NX-01 traced several Suliban who had kidnapped a Klingon courier (Klaang) to the upper atmosphere of a class 7 gas giant. (ENT: "Broken Bow")