Hangul is the phonetic writing system developed in 1446 for writing the Korean language. The Unicode Standard contains both the complete set of precomposed modern Hangul syllable blocks and a set of conjoining Hangul Jamo. These are the individual letters which combine to form Hangul syllables.

The conjoining Hangul Jamo can be used to represent all of the modern Hangul syllable blocks, as well as the ancient syllable blocks used in Old Korean.