Prince Harry -- Supporters STRIP NAKED In Show of Solidarity

People around the world are coming together to show their support by Prince Harry ... in the form of naked tributes on Facebook.

TMZ has discovered ... a Facebook group called , "Support Prince Harry with a Naked Salute" has popped up online ... with marching orders to back the Prince, by showing your front.

The rules are simple, "please cover your crown jewels, tag yourself in your photo as proof of your support to the nations favourite Royal!"

Supporters are firing in their pics in droves .... both men and women.