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Home » Latest » Data & Strategy » Ranked: Wealthiest People in South Korea for 2021 – Richest Billionaires

Data & Strategy

Ranked: Wealthiest People in South Korea for 2021 – Richest Billionaires

Jae-yong (Jay Y. Lee)

With a net worth of roughly US$12.5 billion, Celltrion Chairman Seo Jung-jin is the wealthiest person in South Korea for 2021. The number of South Korean billionaires increased sharply from 28 in 2020 to 46 this year.

This year, Samsung Group Chairman Lee Jae-yong (Jay Y. Lee) is the second-richest person in South Korea, with assets valued at $12.4 billion, followed by the CEO of gaming firm Nexon’s holding company NXC, Kim Jung-ju with $10.9 billion coming in third and the chairman of Kakao Kim Beom-soo with $10.6 billion at fourth place.

Top 46 billionaires in South Korea in 2021, by net worth (in billion U.S. dollars)

  1. Seo Jung-jin (US$12.5 billion; biotech, Celltrion)
  2. Jay Y. Lee (US$12.4 billion; Samsung, Samsung Electronics)
  3. Kim Jung-ju (US$10.9 billion; online games, Nexon)
  4. Kim Beom-su (US$10.6 billion; online services, Kakao)
  5. Kwon Hyuk-bin (US$9.5 billion; online games, Smilegate Holdings)
  6. Hong Ra-hee (US$7.1 billion; Samsung)
  7. Bom Kim (US$6.4 billion; online retailing, Coupang)
  8. Mong-Koo Chung (US$5.9 billion; Hyundai, Hyundai Motor)
  9. Lee Boo-jin (US$4.9 billion; Samsung, Hotel Shilla)
  10. Suh Kyung-bae (US$4.8 billion; cosmetics, Amorepacific)
  11. Lee Seo-hyun (US$4.4 billion; Samsung, Samsung C&T)
  12. Euisun Chung (US$3.9 billion; Hyundai, Hyundai Motor)
  13. Michael Kim (US$3.6 billion; private equity, MBK Partners)
  14. Chey Tae-won (US$3.4 billion; oil, semiconductor, SK Holdings)
  15. Koo Kwang-mo (US$3.3 billion; LG)
  16. Bang Shi-hyuk (US$2.7 billion; entertainment)
  17. Kim Taek-jin (US$2.6 billion; online games, NCSOFT)
  18. Bang Jun-hyuk (US$2.4 billion; online gaming)
  19. Lee Hae-jin (US$2.3 billion; Internet, Naver)
  20. Kim Sang-yeol (US$2 billion; construction)
  21. Cho Jung-ho (US$1.95 billion; finance, Meritz Financial Group)
  22. Lee Joong-keun (US$1.9 billion; construction, real estate, Booyoung Group)
  23. Chung Yong-jin (US$1.8 billion; retail, Shinsegae)
  24. Lee Joon-ho (US$1.7 billion; online games, NHN Entertainment)
  25. Koo Bon-sik (US$1.65 billion; LG, Heesung)
  26. Koo Bon-joon (US$1.6 billion; electronics, household products, LG Electronics)
  27. Kim Jun-ki (US$1.58 billion; diversified, Db Insurance)
  28. Shin Chang-jae (US$1.54 billion; insurance, Kyobo Life Insurance)
  29. Chang Pyung-soon (US$1.52 billion; educational services, Kyowon Group)
  30. Lee Ho-jin (US$1.5 billion; diversified, Taekwang Industrial)
  31. Koo Bon-neung (US$1.49 billion; electronics, Heesung Electronics)
  32. Kim Chang-soo (US$1.46 billion; apparel)
  33. Huh Jae-myung (US$1.45 billion; electric components)
  34. Chung Mong-joon (US$1.43 billion; shipbuilding, industrial machines, Korea Shipbuilding & Offshore Engineering)
  35. Park Hyeon-joo (US$1.36 billion; mutual funds, Mirae Asset)
  36. Kim Nam-jung (US$1.35 billion; food)
  37. Lee Jay-hyun (US$1.34 billion; food products, entertainment, CJ Corporation)
  38. Hong Seok-joh (US$1.25 billion; convenience stores, BGF Co. Ltd.)
  39. Chey Ki-won (US$1.23 billion; computer services, telecom, SK Holdings)
  40. Lee Sang-il (US$1.21 billion; car parts, Iljin Global)
  41. Kim Nam-goo (US$1.2 billion; Korea Investment Holdings)
  42. Kim Dae-il (US$1.18 billion; mobile gaming)
  43. Kim Jung-woong (US$1.15 billion; cosmetics)
  44. Gim Seong-gon (US$1.1 billion; renewable energy)
  45. Shin Dong-guk (US$1.05 billion; Pharmaceuticals, Hanyang Precision)
  46. Shin Dong-joo (US$1 billion; retail, Lotte Shopping)

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Sophie Ireland, PhD
Sophie Ireland, PhD in Media Entrepreneurship & Strategy, is the Senior Economist and Finance Editor at CEOWORLD Magazine, where she brings over 15 years of editorial and consulting experience across finance, media strategy, and executive communications. Sophie began her career as a financial journalist, reporting on Wall Street during the global financial crisis, before transitioning into corporate branding for Fortune 500 firms.

Her dual background in journalism and PR gives her a rare edge—she not only understands what moves the markets, but also how companies manage messaging and reputation during pivotal business moments. At CEOWORLD, Sophie curates high-level editorial content that blends financial literacy with strategic storytelling. She focuses on leadership visibility, earnings communication, investor relations, and market forecasting.

Sophie holds a degree in Financial Journalism and a professional certification in Corporate Communications. She is a sought-after panelist on executive reputation and is active in mentoring women in finance and media. Through her work at CEOWORLD, she aims to equip leaders with the insights they need to communicate powerfully, lead decisively, and maintain resilience in rapidly evolving market landscapes.