The Gillig Phantom is a series of buses that was produced by an American manufacturer Gillig Corporation in Hayward, California. The successor to the long-running Gillig Transit Coach model line, the Phantom marked the transition of Gillig from a producer of yellow school buses to that of transit buses. The first transit bus assembled entirely by Gillig (from 1977 to 1979, the company assembled a few buses in a joint venture with Neoplan), the Phantom was produced exclusively as a high-floor bus (with step entrance).