While you can have a Named Viewport I don't believe you can actually display a name in the viewport itself automatically. If you had spent any time "on the board" you would know that the standard convention in orthographic projection is TOP, FRONT, SIDE (usually the right) and ISO (southeast). If you always adhere to that system then there would be no reason to actually name the views.
If you do something different, like have an ISO viewed from the northwest, then perhaps you should just place some text inside the viewport as a reminder. The text could be placed on the Defpoints layer or another layer that isn't plotted.