Surname หทัยวุฒิ (หทัยวุฒิ , Hataiwut ) , around the globe, is an extremely rare family name. Much more frequently, หทัยวุฒิ is the forename as well as the last name.
Hathaiwut
ทวีวโรดมกุล, and ศิริธราธิวัตร
, Hataiwut