Liu (劉 / 刘) is a common Chinese surname.
Liu, LIU, or liu may also refer to:
- Liǔ (柳), a Chinese surname
- Liu (state), a state during the Zhou Dynasty of ancient China
- Liu, Estonia, a village in Gulf of Riga, north Europe
- Liù, the slave girl in Turandot
- Laureate International Universities
- Lebanese International University, Lebanon
- Linköping University, Sweden
- Long Island University, New York, United States
- Lughat il-Ishaarah il-Urduniah, the Jordanian name for Levantine Arabic Sign Language or Syro-Jordanian Sign Language