| Liu Yu 劉餘 | |
| Succession: | Prince of Huaiyang (淮陽王) |
| Reign: | 155–154 BC |
| Reign-Type: | Tenure |
| Succession1: | Prince of Lu (魯王) |
| Reign1: | 154–128 BC |
| Reign-Type1: | Tenure |
| Birth Date: | Unknown |
| Death Date: | 128 BC |
| Full Name: | Family name: Liu (劉) Given name: Yu (餘) |
| House: | Han dynasty |
| Father: | Emperor Jing of Han |
| Mother: | Consort Cheng |
Liu Yu (; died 128 BC[1]) was a prince of the Western Han dynasty. He was the fifth son of Emperor Jing. His mother was Consort Cheng (程妃). In 155 BC he was instated as Prince of Huaiyang (淮陽王), but a year later his title was later changed to Prince of Lu (魯王).
Liu Yu's descendants included the Three Kingdoms era warlords Liu Biao and Liu Yan, Liu Biao's sons Liu Qi and Liu Cong, and Liu Yan's son Liu Zhang.[2]
. Rafe de Crespigny. A Biographical Dictionary of Later Han to the Three Kingdoms 23-220 AD. 2007. 485. Brill. Leiden. 9789004156050.