A protective headrest for land vehicles provides ergonomic support and protection against injury to a passenger's head and spine. The protective headrest has a back wall, sides, top and front wall. The front wall includes a head support segment co-joined and adjacent to a spine support segment. The head support segment has a semi-spherical concave curvature adapted and shaped to correspond with a passenger's head. The spine support segment is substantially shaped as a convex curvature adapted and shaped to correspond with the passenger's spine region at the neck-head interface. The spine support segment is located proximate and adjacent to the head support segment on a vertical plane. Preferably, the headrest includes a memory foam or other moldable insert within the head support segment and/or the spine support segment.