What is the newest flag in the world?

There's no single definitive answer to "the newest flag in the world." Flags are constantly being created for new entities, whether they be newly independent nations, newly formed organizations, or even newly established localities. There's no central global registry tracking flag creation dates.

To find a "newest" flag would require extensive research across newly formed entities globally, and even then, the answer would be fleeting. A flag adopted today might be replaced tomorrow.

Therefore, instead of naming a specific flag, it's more accurate to say that new flags are constantly appearing, and any attempt to name the absolute "newest" would quickly become outdated.