Which language uses the Hangul writing system?

Korean uses the Hangul writing system.

Hangul was created in 15th-century Korea under King Sejong and introduced through the Hunminjeongeum proclamation of 1443, published in 1446. The system was designed to represent Korean speech more systematically than the Chinese characters that had previously dominated formal writing.

Hangul letters represent consonants and vowels, but they are arranged into visually compact syllable blocks. This can make the script look like a set of logographic symbols even though its basic units are alphabetic. The shapes of several consonant letters reflect the position of the speech organs used to pronounce them.

Modern Korean writing may also contain some Chinese-derived vocabulary and occasional Hanja characters, especially in specialized or historical contexts. Nevertheless, Hangul is the principal writing system in both South Korea and North Korea, with different national terminology and style conventions.