JU may refer to:
- Jordan University, located in Amman, Jordan
- Jacksonville University, a university in Jacksonville, Florida
- Jadavpur University, a university in Kolkata, India
- Jahangirnagar University, a public university in Savar, Bangladesh
- Jat Airways (IATA code JU)
- Juan de Nova Island (FIPS code JU)
- Junge Union, a conservative youth group in Germany
Ju may refer to:
- Ju County (莒县), of Rizhao, Shandong, China
- Ju Wenjun, a Chinese chess player
- Junkers, a German aircraft manufacturer
- Canton of Jura (created in 1979), newest of the 26 Swiss cantons
- Zhou (political division), pronounced ju in Korean
- The Principle of Ju, a philosophical concept in martial arts
- ju, a word for Korean alcoholic beverages
- Juh, an Apache leader
- Juu languages, spoken in Botswana, Namibia and Angola
- Ju, Rudong County (苴镇), a town in Rudong County, Jiangsu, China
- Ju (city), a city of the State of Qi during the Warring States Period of China
- Ju (state), a vassal state of the Zhou Dynasty
- Ji Ju, a semi-legendary ancestor of the Zhou dynasty