Abstract: A selectively settable and removable door holder is configured for setting atop the hinge-pin head of a door hinge assembly in order to prevent a door supported by the door hinge assembly from closing beyond a predetermined minimum door angle. The door holder is defined by a plate-like body having opposed first and second sides extending longitudinally along a central axis between holder first and second ends and a shape-defining body perimeter extending between the opposed first and second sides. A central hinge-rest region configured for setting atop the hinge-pin head is situated between the holder first and second ends. Sub-portions of the body perimeter define door-engaging and door-frame-engaging edges that mutually diverge away from the hinge-rest region toward the first end. A tail portion is defined by tail first and second edges that mutually diverge away from the hinge-rest region toward the holder second end.