Korea
- Korea, an abbreviation for "Hanguk" (한국, 韓國), the Korean language name for Korea
- an archaic Korean root meaning "great" or "leader"; transliterated into hanja as 韓, 幹, or 刊; see Names of Korea
- Samhan, three confederacies of chiefdoms on the southern Korean peninsula in the Proto-Three Han Kingdoms Period
- Han (Korean name), a Korean surname (한, 韓 or 漢), also romanized as "Hahn"
- Han (cultural), a Korean cultural concept of lament
- Korean language (한국어 Hangug-eo) or Hangul (한글 Hangeul)
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