A tethered balloon is a large balloon filled with helium, hot air, or other substance lighter than air, which is permanently affixed to the ground with strong cables. The balloon is typically used to take persons on rides for observation and mild thrills. Temporarily tethered balloons are not listed in this category.

The cables keep the balloon attached to the same ground installation during operation. Its buoyancy lifts riders while the tether limits its movement.

The permanent attachment distinguishes this ride from a free-flying balloon or one tethered only temporarily. Different lighter-than-air fillings can provide the lift.