Ong (surname)
Ong is a Hokkien romanization of several Chinese surnames:  (Wáng in Hanyu Pinyin),  (also Wāng),  (traditional) or  (simplified; Huáng); and  (Weng). Ong is also a Laotian surname. Ong or Onge is also a surname of English origin, with earliest known records found in Western Suffolk taxation records from c. 1280 AD.  Ong (or Онгь in Russian language-based records) is also an Estonian surname, possibly derived from õng, meaning "fishing rod/hook".

Ong has also been used to romanize the Taishanese pronunciation of  (more commonly romanized as Deng or Teng), as in the case of Betty Ong.

Romanization
Under the Pe̍h-ōe-jī romanization system, 王 but not the other names includes a circumflex over its vowel: Ông. However, this is often omitted in practice.

Distribution
In Singapore, Ong is the fifth-most-common surname among Singaporean residents. In the United States, Ong was the 6,682nd most common surname during the 1990 US census and the 4,343rd most common surname during the year 2000 US census.

Notable Ongs
 Angelia Ong (born 1990), Filipina model and beauty pageant titleholder
 Augustine Ong, Malaysian scientist and academic
 Ong Beng Hee (born 1980), Malaysian professional squash player
 Ong Beng Teong (born 1962), Malaysian badminton player and coach
 Betty Ong (1956–2001), American flight attendant, killed in the September 11 attacks
 Ong Boon Hua, birth name of Chin Peng, Malaysian politician and anti-fascist activist
 Canny Ong (1974–2003), Malaysian murder and rape victim
 Daniel Ong (born 1975), Singaporean businessman, radio DJ and television host
 Daryl Ong (born 1987), Filipino singer-songwriter
 Ong Ewe Hock (born 1972), Malaysian badminton player
 Glenn Ong (born 1970), Singaporean DJ
 Han Ong (born 1968), American playwright and novelist
 Ong Hock Thye (1908–1977), Malaysian judge
 Ong Hok Ham (1933–2007), Chinese Indonesian historian
 Ong Huay Dee (1935–2000), Singaporean taxi driver and murder victim
 Ong Iok-tek (1924–1985), Taiwanese scholar and politician
 John D. Ong (born 1933), American businessman
 Ong Ka Ting (born 1956), Malaysian politician
 Ong Kee Hui (1914–2000), Malaysian Chinese politician
 Ong Keng Sen (born 1963), Singaporean theatre director
 Ong Keng Yong (born 1954), Singaporean diplomat
 Ong Keo (?–1910), Laotian pro-independence rebel
 Ong Kham (?–1769), king of Luang Phrabang
 Ong Khan (?–1203), khan of the Keraites
 Ong Kommandam (?–1910), Laotian pro-independence rebel
 Nai Phuan Ong (born 1948),  American experimental physicist
 Olivia Ong (born 1985), Singaporean singer and actress
 Ong Pang Boon (born 1929), Singaporean retired politician
 Ong Poh Lim (1923—2003), Malaysian Singaporean badminton player
 Remy Ong (born 1978), Singaporean bowler
 Richard Ong (born 1965), Malaysian businessman and investor
 Ryan Ong Palao, Filipino-American drag performer and HIV awareness activist
 Samuel Ong (1945–2009), Filipino whistleblower
 Willie Ong, (born 1963) Filipino cardiologist, media personality and politician 
 Ong Schan Tchow (1900–1945), Chinese patriot artist
 Ong Seok Kim (1884–1964), Malaysian educationist, social worker and philanthropist
 Ong Seong-wu (born 1995), South Korean singer and actor
 Ong Soh Khim, Singaporean academic and politician
 Ong Soo Hin, Malaysian Chinese businessman
 Ong Soon Hock (born 1985), Malaysian badminton player
 Ong Teck Chin (born 1949), Singaporean educator
 Ong Teng Cheong (1936–2002), Singaporean architect, union leader and politician
 Ong Teng Siew (born 1968), Malaysian chicken slaughterer and convicted killer
 Thomas Lembong, Indonesian politician
 Ong Tiao Kok (born 1941), better known as Wang Zhaoguo, Chinese politician
 Walter J. Ong (1912–2003), American Jesuit priest, professor and philosopher
 Ong Ye Kung (born 1969), Singaporean politician

References

Hokkien-language surnames