朱 (Surname: Zhu)
- Zhu Di - 朱棣
- Zhu Shunsui - 朱舜水
- Zhu Huang - 朱晃
- Zhu Quanzhong - 朱全忠
- Zhu San - 朱三
- Zhu Wen - 朱溫
- Zhu Xi - 朱子
- Zhu Xi - 朱熹
- Zhu Yigui - 朱一貴
- Zhu Yijun - 朱翊鈞
- Zhu Yuanzhang - 朱元璋
朱 (J: shu, meaning "vermillion" or "cinnabar")
- Vermillion - 朱
- Red seal ships - 朱印船 (shuinsen)
- Red seal certificate - 朱印状 (shuinjô)
- One shu, a unit of gold currency, worth 4 koku or 1/4 of a bu.
- Isshugin (一朱銀) and nishugin (二朱銀), Edo period silver coins.