Display screen or portion thereof having a graphical user interface

FIG. 1 is a view of a first embodiment of a display screen or portion thereof having a graphical user interface;

FIG. 2 is a view of a second embodiment of a display screen or portion thereof having a graphical user interface;

FIG. 3 is a view of a third embodiment of a display screen or portion thereof having a graphical user interface;

FIG. 4 is a view of a fourth embodiment of a display screen or portion thereof having a graphical user interface;

FIG. 5 is a view of a fifth embodiment of a display screen or portion thereof having a graphical user interface;

FIG. 6 is a view of a sixth embodiment of a display screen or portion thereof having a graphical user interface;

FIG. 7 is a view of a seventh embodiment of a display screen or portion thereof having a graphical user interface;

FIG. 8 is a view of an eighth embodiment of a display screen or portion thereof having a graphical user interface;

FIG. 9 is a supplemental view of FIG. 1 showing an enlarged view of the claimed subject matter and without showing broken-line subject matter, for clarity of illustrating the claimed design;

FIG. 10 is a supplemental view of FIG. 2 showing an enlarged view of the claimed subject matter and without showing broken-line subject matter, for clarity of illustrating the claimed design;

FIG. 11 is a supplemental view of FIG. 3 showing an enlarged view of the claimed subject matter and without showing broken-line subject matter, for clarity of illustrating the claimed design;

FIG. 12 is a supplemental view of FIG. 4 showing an enlarged view of the claimed subject matter and without showing broken-line subject matter, for clarity of illustrating the claimed design;

FIG. 13 is a supplemental view of FIG. 5 showing an enlarged view of the claimed subject matter and without showing broken-line subject matter, for clarity of illustrating the claimed design;

FIG. 14 is a supplemental view of FIG. 6 showing an enlarged view of the claimed subject matter and without showing broken-line subject matter, for clarity of illustrating the claimed design;

FIG. 15 is a supplemental view of FIG. 7 showing an enlarged view of the claimed subject matter and without showing broken-line subject matter, for clarity of illustrating the claimed design; and,

FIG. 16 is a supplemental view of FIG. 8 showing an enlarged view of the claimed subject matter and without showing broken-line subject matter, for clarity of illustrating the claimed design.

The dot-dashed broken lines depict a boundary of the display screen or portion thereof and form no part of the claimed design. The dashed broken lines depict portions of the display screen or portion thereof having a graphical user interface that form no part of the claimed design.