Supachai or Suphachai (; from ) is a Thai masculine given name. People with the name include: Supachai Kamsab, Thai footballer Supachai Komsilp, Thai footballer Supachai Koysub, Thai athlete Supachai Panitchpakdi, Thai politician Supachai Phupa, Thai footballer Supachai Tangwongsan, Thai computer scientist Suphachai Chearavanont, CEO of Charoen Pokphand Group Supachai Jaided, Thai footballer Suphachai Phosu, Thai politician