Here are just a few from around the world.
Girl Scouts of the Philippines, Philippines In a message paying tribute to the Duke of Edinburgh, the group said: The Girl Scouts of the Philippines extends its most sincere condolences to Her Majesty The Queen and the Royal Family on the passing of His Royal Highness The Prince Philip, Duke of Edinburgh. GSP is one of the WAGGGS-member organizations that operate the Duke of Edinburgh International Awards.
Mark Alonzo, Texas Recalling a visit to London where he saw the Duke of Edinburgh, Mr Alonzo said: As a resident of a former British holding and having British heritage I have always followed the Royal Family and admired them.