Cognomen Teerach (Teerach 
) , throughout the world, is an extremely rare family name. Much more prevalently, Teerach is the forename as well as the last name.
Tonpong, Ittatirut, Anuntabhun, Dharapak, Thongitti, Srihakulung, Korchakul, Vorajariyasakul, Wongjatupat, Yenjaichon, Utumpornsiri, Pithakwongroj, Thaiyanant, and Thongjitti