Display Screen or Portion Thereof with an Animated Graphical User Interface

FIG. 1 is a front view of a first image in a sequence display screen or portion thereof with an animated graphical user interface.

FIG. 2 is a second image thereof.

FIG. 3 is a third image thereof.

FIG. 4 is a fourth image thereof.

FIG. 5 is a fifth image thereof.

FIG. 6 is a sixth image thereof; and,

FIG. 7 is a seventh image thereof.

The outer most broken line rectangle depicts a display screen or portion thereof. The remaining broken lines depict portions of the graphical user interface. All broken lines form no part of the claimed design.

The appearance of the transitional image sequentially transitions between the images shown in FIGS. 1 - 7 . The process or period in which any image transitions to another image forms no part of the claimed design.