Abstract: A baby high chair liner includes a single and unitary body including a plurality of panels integrally and monolithically coupled to each other, a plurality of fold over tabs integrally and monolithically coupled to the panels respectively, a plurality of lines of weakness disposed at associated conjoining edges of the panels and the fold over tabs such that the fold over tabs are freely pivotally about the lines of weakness, respectively, and a plurality of fasteners connected to the fold over panels, respectively. The fasteners are configured to detachably secure the fold over panels to the existing baby high chair. The panels and the fold over tabs are configured to secure and cover a major seat surface area of an existing baby high chair and thereby provide a protective barrier between a child and the existing baby high chair.