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 a first embodiment of our new design;

FIG. 2 is a front view of a display screen or portion thereof with graphical user interface showing a second embodiment of our new design;

FIG. 3 is a front view of a display screen or portion thereof with graphical user interface showing the embodiment of FIG. 1 in a differing broken-line context; and,

FIG. 4 is a front view of a display screen or portion thereof with graphical user interface showing the embodiment of FIG. 2 in a differing broken-line context.

The dot-dash broken lines illustrate a display screen or portion thereof and form no part of the claimed design. The remaining broken lines illustrate portions of the display screen or portion thereof with graphical user interface that form no part of the claimed design.