A countertop barrier device for provision of a sanitary barrier between an article and a countertop includes a tubular housing, which is selectively mountable to a surface proximate to a back edge of a countertop so that the tubular housing is removably mounted to the surface and substantially parallel to the back edge. A slot is positioned in the tubular housing and extends from proximate to opposed ends of the tubular housing. A mat is selectively extensible from and retractable into the tubular housing through the slot. A fastener is engaged to the mat proximate to a leading edge of the mat. The fastener engages the countertop proximate to a front edge of the countertop so that the mat covers a portion of the countertop. An article can be positioned on the mat without the article coming into contact with the countertop.