Display Screen or Portion Thereof with Graphical User Interface

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

FIG. 2 is a front view of a display screen or portion thereof with graphical user interface showing an alternative embodiment of the claimed design;

FIG. 3 is a front view of a display screen or portion thereof with graphical user interface showing an alternative embodiment of the claimed design; and,

FIG. 4 is a front view of a display screen or portion thereof with graphical user interface showing an alternative embodiment of the claimed design.

The broken lines in the figures around the graphical user interface show a display screen or portion thereof, and form no part of the claimed design. The other broken lines in the figures show portions of the graphical user interface that form no part of the claimed design.