Display Screen or Portion Thereof with Graphical User Interface

The patent file contains at least one drawing executed in color. Copies of this patent with color drawings will be provided by the Office upon request and payment of the necessary fee.

The FIGURE is a front view of a display screen or portion thereof with graphical user interface showing my new design.

The dashed colored lines, and the alternating color-gray-color lines form part of the claimed design. The outer perimeter illustrated by dashed broken lines immediately surrounding the claimed graphical user interface in the FIGURE illustrates a display screen or portion thereof and forms no part of the claimed design. The remaining outer perimeter dashed broken lines illustrate an environmental mobile phone and form no part of the claimed design. The broken lines within the dashed line perimeters in the FIGURE illustrate portions of the graphical user interface and form no part of the claimed design.