Display Screen or Portion Thereof with Graphical User Interface

FIG. 1 is a front view of a first embodiment of a display screen or portion thereof with graphical user interface, showing the new design;

FIG. 2 is a second embodiment thereof;

FIG. 3 is a third embodiment thereof;

FIG. 4 is a fourth embodiment thereof;

FIG. 5 is a fifth embodiment thereof; and,

FIG. 6 is a sixth embodiment thereof.

The broken lines show a display screen or portion thereof that form no part of the claimed design. The dotted lines show portions of the graphical user interface that form no part of the claimed design.