King You of Zhou (before 781 BC - 771 BC) (ch 周幽王 zhōu yōu wáng) was the twelfth sovereign of the Chinese Zhou Dynasty and the last of Western Zhou Dynasty.
| family name | Ji (姬 jī) in Chinese |
| given name | Gongsheng (宮湦 gōng shēng) in Chinese |
| era name | none |
| father | King Xuan of Zhou |
| mother | unknown |
| wives | 1)Queen Shen, daughter of Marquess of Shen 2)concubine Baosi |
| children | King Ping of Zhou from Queen Shen and prince Bofu from Baosi |
| duration of reign | 781 BC-771 BC |
| tomb | unknown |
| temple name | unknown |
| courtesy name | unknown |
| posthumous name | You 幽 (pinyin yōu), literary meaning: "serene" |
| Preceded by: King Xuan of Zhou |
Zhou Dynasty | Succeeded by: King Ping of Zhou |