A toilet paper roll holder attachment system is disclosed for supporting the holding of at least two toilet paper rolls in either horizontal or vertical configuration or for supporting the holding of large or jumbo toilet paper rolls. The toilet paper roll holder attachment system has a hollow cylindrical body with two substantially round apertures which are adapted for holding a toilet paper roll spindle. There is a vertical support arm or support bracket extending perpendicularly downward from the hollow cylindrical body. At the lower end of the vertical support arm or support bracket is a horizontal rod for holding the toilet paper rolls. There is(are) stopper(s) at the end(s) of the horizontal rod for the purpose of preventing the toilet paper rolls from sliding out of the horizontal rod.