Mengjiang royal family was the family of Prince Demchugdongrub, the puppet ruler of Mengjiang, a part of Inner Mongolia controlled by the Japanese during the Second Sino-Japanese War.
- Demchugdongrub, Mongol prince of the Qing dynasty and ruler of Mengjiang
- Namjilvaanchig (Намжилваанчиг), Demchugdongrub's father and the chief of the Xilinguole Alliance
- Erentsoo (Эрэнцоо), Demchugdongrub's wife
- Dugarsüren (Дугарсүрэн), Demchugdongrub's son
- Batnasan (Батнасан), Demchugdongrub's daughter
- Shanqi, a distant relative of Demchugdongrub
- Kawashima Yoshiko, Shanqi's daughter