All over the world, ธงเจริญ (ธงเจริญ , Thongcharen ) is an extremely rare male first name. More prevalently, ธงเจริญ is the last name as well as the forename.
Thongchalean, Thongchaleon, and Thongcharo
, Thongcharen 
) is an extremely rare male first name. More prevalently, ธงเจริญ is the last name as well as the forename.