A foldable paper coffin includes a casket having a chamber formed by two side walls and two end walls and a bottom wall, and formed with a planar paper sheet having two side panels foldable relative to a bottom panel, two inner panels foldable relative to the side panels, two end panels foldable relative to the bottom panel, two inner folds foldable relative to the end panels, and the end panels and the inner folds each have two foldable end flaps engageable between the inner panels and the side panels, and the side panels and the inner panels and the end flaps each include one or more orifices for engaging with latches and for retaining the casket in a spatial or three-dimensional structure.
