Yoo (Korean surname)
|Yoo or Ryu|
유 or 류
|Revised Romanization||Yu or Ryu|
|McCune–Reischauer||Yu or Ryu|
Yoo or You, or sometimes Ryu or Ryoo is the English transcription of several Korean surnames written as 유 or 류 in hangul. Some of the family names written as Yoo are derived from the Chinese surnames 劉 or 柳 (Liu) and 兪 (Yu). As of 2000, roughly a million people are surnamed Yoo in South Korea, making up approximately 2% of the population. Of those, the most common is Ryu (Hanja: 柳, Hangul: 류), with more than six hundred thousand holders, whereas Yoo (Hanja: 兪, Hangul: 유) accounts for about one hundred thousand.
The family name Yoo can be represented by any of the four hanja: 柳 (류), 劉, 兪 and 庾, each with a different meaning. In Korean, the characters 劉 and 柳 refer to 류 (Ryu) or 유 (Yoo) and are spelled as such because of the first initial sound rule (두음 법칙) in Korean, whereas the characters 兪 and 庾 refer only to 유 (Yoo).
According to Chinese legend, Yoo is an ancient Chinese surname. The ancestors of the surname were closely linked with the ancient sage-king named Yu Shun. In Korea, the Yoo lineage traces to the Xia, Han, and Joseon dynasties. Holders of the surname Yu or Yoo had a reputation for charity and diligence. Some sources indicate the existence of as many as 230 clans, but only about twenty have been be positively documented, several of Chinese origin.
The largest Ryu clan, the Munhwa Ryu, was founded by a man named Ch’a Tal. Ch’a's fifth great-grandfather had been involved in an attempt to overthrow the Silla king. To avoid prosecution, the ancestor fled to Munhwa and changed his surname, first to that of his maternal grandmother, Yang, and then to Ryoo. Many years later, Ch’a Tal assisted Wang Kŏn to establish the Koryŏ Kingdom. Ch’a was recognized for his support and was rewarded accordingly. However, the historic claims that the Ch'a clans are derived from the same progenitor as Ryu Ch'a-dal have been disproven. The Munhwa Ryoo clan, along with the Andong Kwŏn clan, possess one of Korea's oldest clan genealogies. Only the character 柳 is commonly pronounced Ryu or Ryoo (류). (See Munhwa Ryoo) The surname "Ryu" comes from the character meaning willow tree. Hence, the lineage is also sometimes called "willow Ryu" (버들 류씨).
- Ryu Cha-dal (b. circa 880)
- Yu Seong-won (d. 1456), one of the Six martyred ministers during the Joseon period.
- Yu Eung-bu (d. 1456), of the Gigye Yoo clan originally from Pohang, one of the Six martyred ministers during the Joseon period.
- Ryu Seong-ryong (1542–1607). Well known for his JingBiRok.
- Yu Hyeong-won (1622–1673). He was an early silhak scholar.
- Yu Deuk-gong (1749–1807), historian about Balhae.
- Yu Kil-chun (1856–1914), of the Gigye Yoo clan originally from Pohang. Independence activist.
- Il-han New (1895–1971). Independence activist and entrepreneur.
- Ryu Gwan-sun (1902–1920). She was a Korean independence activist.
- Yoo Ah-in (born Uhm Hong-sik), South Korean actor, creative director, and gallerist
- Yu Anjin, South Korean poet
- Yoo Ara, South Korean actress and singer, former member of girl group Hello Venus
- Yoo Chae-yeong (1973–2014), South Korean actress, singer and radio host
- Yoo Dong-geun, South Korean actor
- Yoo Hae-jin, South Korean actor
- Yoo Ho-jeong, South Korean actress
- Yoo Hyun-young (better known as Hyun Young), South Korean entertainer
- Yoo In-na, South Korean actress and DJ
- Yoo In-young (born Yoo Hyo-min), South Korean actress
- Yoo Jae-ha (1962–1987), South Korean singer-songwriter
- Yoo Jae-suk, South Korean comedian, host and television personality
- Yoo Jeong-yeon (better known as Jeongyeon), South Korean singer and member of girl group Twice
- Yoo Ji-tae, South Korean actor, film director and screenwriter
- Yoo Jun-sang, South Korean actor and singer
- Yoo Ki-hyun, South Korean singer and member of boy group Monsta X
- Yoo Min-hyeon, South Korean curler
- Yoo Myung-hee, South Korean politician and Minister for Trade
- Yoo Sang-chul (1971–2021), South Korean football manager and player
- Yoo Se-yoon, South Korean comedian and television comedy show host
- Yoo Seung-ho, South Korean actor
- Yoo Seung-yeon (better known as Gong Seung-yeon), South Korean actress
- Yoo Seung-woo, South Korean singer-songwriter and guitarist
- Yoo Nam-kyu, South Korean former table tennis player
- Yoo Si-ah (stage name YooA), South Korean singer and member of girl group Oh My Girl
- Yoo Soo-Young (born Shū Kunimitsu, also known as Shoo), Japanese actress and singer
- Yoo So-young, South Korean actress and former member of girl group After School
- Yoo Yeon-jung, South Korean singer, member of girl groups I.O.I and Cosmic Girls
- Yoo Yeon-seok (born Ahn Yeon-seok), South Korean actor
- Yoo Yeon-soo (better known as Ha Yeon-soo), South Korean actress
- Yoo Yong-sung, South Korean retired badminton player
- Yoo Young-chul, South Korean serial killer, rapist, and cannibal
- Yoo Young-ho, South Korean sculptor
- Yoo Young-jae, South Korean singer and actor, member of boy group B.A.P
- Yoo Young-jin, South Korean songwriter and record producer
- You Hee-yeol, South Korean singer-songwriter
- Yu In-chon, South Korean actor and former Minister of Ministry of Culture and Tourism
- Ryoo Ryong, South Korean scientist
- Ryoo Seung-bum, South Korean actor
- Ryoo Seung-wan, South Korean director
- Ryu Deok-hwan, South Korean actor
- Ryu Hwayoung, South Korean actress and singer, former member of girl group T-ARA
- Ryu Hyo-young, South Korean actress, model and rapper, former member of co-ed group Coed School and girl group F-ve Dolls
- Ryu Hye-young, South Korean actress and model
- Hyun-Jin Ryu, South Korean professional baseball player
- Ryu Hyun-kyung, South Korean actress
- Ryu Jin (born Im Yoo-jin), South Korean actor
- Ryu Jun-yeol, South Korean actor
- Ryu Se-ra, South Korean singer and former member of girl group Nine Muses
- Ryu Seung-Min, South Korean professional table tennis player
- Ryu Seung-ryong, South Korean actor
- Ryu Seung-soo, South Korean actor
- Ryu Seung-Woo, South Korean football player
- Ryu Shikun, South Korean professional Go player
- Ryu Si-won, South Korean actor and singer
- Ryu So-yeon, South Korean professional golfer
- Ryu Soo-young (born Eo Nam-seon), South Korean actor
- Ryu Su-jeong (better known as Sujeong), South Korean singer and member of girl group Lovelyz
- Rhyu Si-min, South Korean politician who served as the 44th Minister of Health and Welfare
- Ryu Jae-kuk, South Korean professional baseball pitcher for the Tampa Bay Devil Rays
- Aaron Yoo, Korean-American actor
- Christopher Yoo, professor of Law, Communication, and Computer and Information Science at the University of Pennsylvania Law School
- John Yoo, Korean-born American professor of law at the University of California, Berkeley and former member of the U.S. Justice Department's Office of Legal Counsel
- Yoo Gun Hyung, South Korean songwriter
- Yoo Na-ul (stage name Naul), South Korean singer
- Scott Yoo, American conductor and violinist
- Miri Yu, Zainichi Korean playwright, novelist, and essayist
- A rank 19th with 603,084 people, KOSTAT (Korea National Statistical Office), 2000.