Ju (), also spelled Joo or Chu, is a single-syllable Korean given name, as well as a common element in two-syllable Korean given names. Its meaning differs based on the hanja used to write it.
There are 56 hanja with the reading "ju" on the South Korean government's official list of hanja which may be used in given names; they are listed in the table at right. One name containing this syllable, Eun-ju, was the sixth-most popular name for newborn South Korean girls in 1970.
People with the monosyllabic given name Ju include:
Names beginning with this syllable include:
Names ending with this syllable include: