In a tab fused to the periphery of an opening provided in a paper container to cover the opening, a pinching section of the tab can be easily held from the surface of the paper container in which theopening is provided. Furthermore, the present invention provides a paper container that can be opened by enabling the tab to be easily peeled off. A paper container according to the present inventionthat is formed of a paper-based laminated sheet and has a top (331) is characterized by having an opening (2) in the top of the container and having a tab (4) that can close the opening. By providing,in the tab, a closing section (42) that covers the opening, a protruding section (41) protruding out from the closing section, and a crease (43) between the closing section and the protruding section, a gap (44) is provided between an end of the protruding section of the tab and the top.