Joo (Korean name)
As a family name, Joo may be written with either of two hanja, one meaning "red" (朱; 붉을 주), and the other meaning "around" (周; 두루 주). The former has one bon-gwan ([WuYuan],[China]), while the latter has four (Sangju, Gyeongsangbuk-do; Chogye-myeon, Hapcheon-gun, Gyeongsangnam-do; Cheorwon-gun, Gangwonnam-do; and Anui-myeon, Hamyang-gun, Gyeongsangnam-do).  The 2000 South Korean census found 215,010 people with this family name.
In a study by the National Institute of the Korean Language based on 2007 application data for South Korean passports, it was found that 50.6% of people with this surname spelled it in Latin letters as Ju in their passports, and another 46.9% spelled it as Joo. Rarer alternative spellings (the remaining 2.4%) included Chu and Choo.
People with these family names include:
- Ju Si-gyeong (1876–1914), Joseon Dynasty linguist
- Chu Yo-han (1900–1976), South Korean poet
- Chu Yung-kwang (1920–1982), South Korean footballer
- Chu Sang-song (born 1933), North Korean politician, former Minister of People's Security
- Ju Kyu-chang (born 1939), North Korean industrial official
- Joo Hyun (born Joo Il-choo, 1941), South Korean actor
- Joo Hyun-mi (born 1961), South Korean trot singer
- Ju Jong-gwan (born 1971), South Korean sprint canoer
- Joo Jin-mo (born 1958), South Korean actor
- Joo Jin-mo (born 1974), South Korean actor
- Ju Seung-jin (born 1975), South Korean footballer
- Joo Hee-jung (born 1977), South Korean basketball player
- Joo Sang-wook (born 1978), South Korean actor
- Joo Se-hyuk (born 1980), South Korean table tennis player
- Brian Joo (born 1981), American-born South Korean singer
- Ju Ho-jin (born 1981), South Korean footballer
- Joo Ki-hwan (born 1981), South Korean footballer
- Joo Kyul-kyung (born 1998), part of South Korean girl group Pristin
- Joo Hyun-jung (born 1982), South Korean archer
- Ju Ji-hoon (born 1982), South Korean actor
- Joo Jong-hyuk (born 1983), South Korean actor and singer
- Joo Min-jin (born 1983), South Korean short track speed skater
- Joo Jae-duk (born 1985), South Korean footballer
- Ju Kwang-youn (born 1985), South Korean footballer
- Joo Hyeon-woo (born 1990), South Korean footballer
- Ju Kwang-min (born 1990), North Korean footballer
- Joo Hyong-jun (born 1991), South Korean speed skater
- Dong Moon Joo, Korean American businessman
- Joo Hee-sun, South Korean music video director
- Joo Seong-ha, North Korean journalist who defected to South Korea in 2002
- Hyung-ki Joo, British classical pianist of Korean descent
- Judy Joo, Korean American celebrity chef
There are 56 hanja with the reading "joo" 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.
Names beginning with this syllable include:
Names ending with this syllable include:
People with the single syllable given name Joo include:
- Joo (singer), stage name of Jung Min-joo (born 1990), South Korean solo singer
- "한국성씨일람" [List of Korean family names]. Kyungpook National University. 2003-12-11. Retrieved 2013-10-30.
- "성씨인구분포데이터" [Family name population and distribution data]. South Korea: National Statistics Office. Archived from the original on 2013-11-01. Retrieved 2013-05-28.
- 성씨 로마자 표기 방안: 마련을 위한 토론회 [Plan for romanisation of surnames: a preparatory discussion]. National Institute of the Korean Language. 25 June 2009. p. 61. Retrieved 22 October 2015.
- "인명용 한자표" [Table of hanja for use in personal names] (PDF). South Korea: Supreme Court. Retrieved 2013-10-17.
- "한국인이 가장 줗아하는 이름은 무엇일까?". babyname.co.kr. Retrieved 2012-11-09.
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