Hangul Jamo (, ) is a Unicode block containing positional (choseong, jungseong, and jongseong) forms of the ~250 Hangul consonant and vowel clusters (). While the Hangul Syllables Unicode block contains precomposed syllables used in standard modern Korean, the Hangul Jamo block can be used to compose arbitrary syllables dynamically, including those not included in the Hangul Syllables block.
The following Unicode-related documents record the purpose and process of defining specific characters in the Hangul Jamo block: