Last name Ladayu (ลดายุ , Ladayu ) , in the world, is an extremely rare surname. Much more prevalently, Ladayu is the forename as well as the last name.
ลัดดายุ
Teptavee, and Yaimsawat
, Ladayu 
) , in the world, is an extremely rare surname. Much more prevalently, Ladayu is the forename as well as the last name.