Abstract: A collapsible stool provides a seat for a user and can be erected for use or folded into a collapsed state. The stool includes first and second side panels that confront one another when collapsed but expand to create a longitudinally extending support post. First and second seat panels are hingedly disposed on the respective top edges of the first and second side panels, and the seat panels terminate in edge margins that interlock to form a seat for the user. The seat is preferably saddle-shaped and has a central peak. The first and second side panels and the first and second seat panels are each preferably constructed of multi-panel sections, and the stool may be an integral piece of corrugated material, such as fiberboard. A holder, such as for a beverage container, is preferably disposed on one of the side panels and is movable between an open position and a closed position alongside the side panel.