Submitted Name Save Type Surname (from nickname) Usage Vietnamese Pronounced Pron. TIENG, TEHN, TAN [key] Other Forms FormsThanh, Thanh-ha, etc. (Forms) Edit Status Status [show contributorhide contributor] Added 6/12/2021 by glacier_bear_82 Meaning & History From Sino-Vietnamese 成 (thành) meaning "completed, finished, succeeded", 城 (thành) meaning "castle, city" or 誠 (thành) meaning "sincere, honest, true".