Display screen or portion thereof with animated graphical user interface

<figref idref="DRAWINGS">FIG. <b>1</b></figref> is a front view of a display screen or portion thereof with animated graphical user interface showing a first image of the claimed design; and,

<figref idref="DRAWINGS">FIG. <b>2</b></figref> is a second image thereof.

The outer broken lines in the figures 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 animated graphical user interface that form no part of the claimed design.

The appearance of the animated image sequentially transitions between the images shown in <figref idref="DRAWINGS">FIGS. <b>1</b>-<b>2</b></figref>. The process or period in which one image transitions to another forms no part of the claimed design.