A collapsible cargo organizer is provided, comprising: a rotatable panel; a supporting base comprising a floor plate; wherein the rotatable panel is rotatable from a horizontal position to a vertical position and vice-versa; wherein, when the rotatable panel is in the vertical position, the rotatable panel provides a vertical panel to laterally support at least one article placeable in an article containing space of the collapsible cargo organizer which overlies the floor plate of the supporting base; and wherein the floor plate of the supporting base overlied by the article containing space when the rotatable panel is in the vertical position is covered by the rotatable panel when the rotatable panel is in the horizontal position.