South Korea is home to some of Asia’s most influential billionaires, with fortunes built around technology, semiconductors, finance, biotechnology, automobiles, retail and global conglomerates.
The country’s billionaire economy received a major boost in 2026 as artificial intelligence drove demand for advanced memory chips and semiconductor equipment. According to Forbes, the combined wealth of South Korea’s 50 richest people reached a record $175 billion in its 2026 ranking, up 77% from $99 billion the previous year.
At the top of the 2026 Forbes Korea Rich List is Jay Y. Lee, executive chairman of Samsung Electronics. Forbes valued his fortune at $21.6 billion for the annual ranking, based on market data through March 27, 2026.
Who Is the Richest Person in South Korea?
Jay Y. Lee is South Korea’s richest person on Forbes’ 2026 Korea’s 50 Richest list.
Lee is the executive chairman of Samsung Electronics and leads the country’s largest conglomerate. His fortune is primarily connected to Samsung and the family's substantial holdings in the group.
The AI boom has been particularly important for Samsung. Growing demand for memory chips used in artificial intelligence systems helped Samsung’s share price rise sharply in 2026. Forbes reported that Lee’s fortune increased by $13.8 billion over the year measured for the list, taking it to $21.6 billion.
Forbes’ Real-Time Billionaires profile later showed Lee at $28.9 billion as of August 6, 2026, demonstrating how quickly billionaire wealth can change with stock prices.
Top 10 Richest People in South Korea in 2026
The following ranking is based on Forbes’ 2026 Korea’s 50 Richest list, with fortunes calculated using stock prices and exchange rates as of March 27, 2026.
Rank | Billionaire | Main Source of Wealth | Net Worth |
|---|---|---|---|
1 | Jay Y. Lee | Samsung / Technology | $21.6 billion |
2 | Michael Kim | Private Equity | $9.9 billion |
3 | Seo Jung-jin | Biotechnology | $8.1 billion |
4 | Cho Jung-ho | Finance & Investments | $8.0 billion |
5 | Lee Boo-jin | Samsung / Technology | $7.9 billion |
6 | Lee Seo-hyun | Samsung / Technology | $7.5 billion |
7 | Mong-Koo Chung | Automotive | $7.3 billion |
8 | Hong Ra-hee | Samsung / Technology | $7.1 billion |
9 | Euisun Chung | Automotive | $6.3 billion |
10 | Yoon Dae-in | Healthcare | $5.9 billion |
These are Forbes’ annual 2026 ranking figures, not necessarily current real-time net worths.
1. Jay Y. Lee
Jay Y. Lee is the executive chairman of Samsung Electronics and the leading billionaire in South Korea.
His wealth is closely tied to Samsung, one of the world's most important technology companies and a major producer of semiconductors, smartphones, displays and electronics.
The 2026 AI boom has been especially significant for Samsung's semiconductor business. Demand for high-performance memory chips used in AI systems helped push Samsung's market value higher and substantially increased Lee's fortune.
Lee's position also reflects the continuing importance of South Korea's chaebol business groups, where large family-controlled conglomerates play a major role in the national economy.
2. Michael Kim
Michael Kim is the cofounder of MBK Partners, a major private-equity firm based in Seoul.
Forbes ranked him second on its 2026 Korea's 50 Richest list with a fortune of $9.9 billion.
Unlike many of South Korea's richest people, Kim built his wealth primarily through private equity rather than a traditional family conglomerate.
MBK Partners manages more than $33 billion in assets, according to Forbes. Kim's career demonstrates the growing role of private capital and investment firms in South Korea's economy.
3. Seo Jung-jin
Seo Jung-jin is the cofounder of Celltrion, one of South Korea's most successful biotechnology companies.
Forbes placed him third in the 2026 ranking with a fortune of $8.1 billion.
Celltrion focuses on biopharmaceuticals and biosimilar medicines. The company's growth has helped make biotechnology one of South Korea's increasingly important sources of billionaire wealth.
Forbes reported that Celltrion's shares rose 30% over the measured period as the company expanded its business and production capabilities.
4. Cho Jung-ho
Cho Jung-ho ranked fourth among South Korea's richest people in 2026, with an estimated fortune of $8 billion.
His wealth is connected primarily to finance and investments, highlighting the importance of South Korea's financial sector alongside technology and manufacturing.
5. Lee Boo-jin
Lee Boo-jin is one of the members of the Samsung family who appear among South Korea's wealthiest people.
She ranked fifth in Forbes' 2026 list with approximately $7.9 billion.
Her fortune is connected to Samsung-related holdings, making her one of several members of the Lee family benefiting from the technology giant's strong performance.
In fact, Samsung's rising valuation pushed four members of the Lee family into the top four positions in a May 2026 Forbes real-time update.
6. Lee Seo-hyun
Lee Seo-hyun ranked sixth with a Forbes-estimated fortune of $7.5 billion.
Like Lee Boo-jin, her wealth is primarily associated with the Samsung family and its substantial technology holdings.
Her position illustrates how the performance of a single major conglomerate can have a significant effect on South Korea's billionaire rankings.
7. Mong-Koo Chung
Mong-Koo Chung is a major figure in South Korea's automobile industry and the former chairman of Hyundai Motor Group.
Forbes ranked him seventh in 2026 with a fortune of approximately $7.3 billion.
The Chung family's influence over Hyundai helped create one of the world's most important automotive groups.
South Korea's automotive industry has expanded significantly beyond the domestic market, with Hyundai and Kia competing globally in conventional vehicles, electric vehicles and emerging mobility technologies.
8. Hong Ra-hee
Hong Ra-hee ranked eighth among South Korea's richest people, with a fortune of approximately $7.1 billion in Forbes' 2026 list.
She is the widow of the late Samsung chairman Lee Kun-hee and the mother of Jay Y. Lee, Lee Boo-jin and Lee Seo-hyun.
Her wealth is largely connected to Samsung-related holdings.
9. Euisun Chung
Euisun Chung, chairman of Hyundai Motor Group, ranked ninth with a fortune of approximately $6.3 billion.
His wealth more than doubled during the period measured for Forbes' ranking as Hyundai Motor shares climbed strongly.
Forbes noted that Hyundai's shares had nearly tripled from the previous year, while Chung's fortune increased substantially.
Chung has also emphasized artificial intelligence and robotics as important areas for Hyundai's future development.
10. Yoon Dae-in
Yoon Dae-in completed the top 10 with an estimated fortune of $5.9 billion.
His inclusion reflects the growing importance of healthcare and related industries in South Korea's billionaire economy.
The country's healthcare and biotechnology sectors have attracted significant investment as Korean companies expand their global presence.
Why Is South Korea Producing So Many Billionaires?
South Korea's wealthiest people come from several powerful industries.
Technology and Semiconductors
Technology remains one of the biggest sources of Korean billionaire wealth. Samsung and other semiconductor companies have benefited from the global AI boom.
Forbes reported that demand for memory chips and chipmaking equipment helped push the wealth of many Korean billionaires to record levels in 2026.
Automotive
Hyundai and Kia have made South Korea a major force in the global automotive market. The Chung family remains one of the country's most influential business families.
Biotechnology
Companies such as Celltrion have helped establish South Korea as an important player in pharmaceuticals and biosimilars.
Finance and Private Equity
Michael Kim's rise to second place demonstrates the scale of wealth that can be created through investment management and private equity.
Artificial Intelligence
AI is becoming an important factor across several industries. Semiconductor manufacturers are benefiting from demand for memory chips, while automotive companies are investing in AI, robotics and autonomous technologies.
The Samsung Effect on South Korea's Wealth Rankings
One of the most interesting developments in 2026 has been the concentration of wealth within the Samsung family.
In May, Forbes reported that four members of the Lee family occupied South Korea's top four positions on its real-time billionaire ranking after Samsung's market capitalization surpassed $1 trillion.
Jay Y. Lee was followed by his sisters Lee Boo-jin and Lee Seo-hyun and their mother Hong Ra-hee.
The development demonstrates how movements in one company's stock can dramatically reshape the country's billionaire rankings.
AI Is Reshaping Korea's Billionaire Economy
Artificial intelligence has become one of the biggest themes behind South Korea's wealth creation in 2026.
Samsung and other Korean semiconductor companies are benefiting from enormous demand for memory chips required by AI data centers.
Forbes reported that South Korea's benchmark Kospi index had more than doubled over the period measured for the 2026 ranking, helping push the combined wealth of the country's 50 richest people to a record $175 billion.
The AI boom is also creating opportunities beyond Samsung. Forbes highlighted chip-equipment companies, biotech businesses and automotive firms as other areas benefiting from technological investment.
The Future of South Korea's Billionaires
South Korea's billionaire landscape is likely to remain closely connected to technology.
Semiconductors, artificial intelligence, robotics, biotechnology, electric vehicles and digital services could all play major roles in creating new fortunes.
At the same time, established conglomerates such as Samsung and Hyundai are continuing to invest in future technologies.
This combination of established industrial power and fast-growing technology businesses could make South Korea an increasingly important source of billionaire wealth in Asia.
Final Thoughts
South Korea's richest people in 2026 represent a diverse group of entrepreneurs, investors and business families.
Jay Y. Lee leads the ranking through Samsung, while Michael Kim represents the strength of private equity and Seo Jung-jin demonstrates the growth of South Korea's biotechnology sector. The Chung family continues to dominate the automotive industry, while several members of the Samsung family benefit from the technology giant's enormous market value.
The biggest story, however, may be the impact of artificial intelligence. Rising demand for AI chips has helped drive South Korea's stock market and significantly increased the fortunes of its wealthiest people.
As AI, semiconductors, biotechnology and robotics continue to develop, South Korea could produce an entirely new generation of billionaires in the years ahead.
FAQs
Who is the richest person in South Korea in 2026?
Jay Y. Lee, executive chairman of Samsung Electronics, ranked as South Korea's richest person on Forbes' 2026 Korea's 50 Richest list with a fortune of $21.6 billion based on March 27, 2026 market data.
What is Jay Y. Lee's current net worth?
Forbes' Real-Time Billionaires profile showed Jay Y. Lee at approximately $28.9 billion as of August 6, 2026. Real-time figures can change with stock prices.
Who is the second-richest person in South Korea?
Michael Kim, cofounder of MBK Partners, ranked second on Forbes' 2026 Korea's 50 Richest list with $9.9 billion.
Who is South Korea's richest woman?
Lee Boo-jin ranked fifth overall on Forbes' 2026 Korea's 50 Richest list with $7.9 billion, making her the highest-ranked woman on that annual list.
How many people are included in Forbes' Korea Rich List?
Forbes' 2026 Korea's 50 Richest list includes 50 of the country's wealthiest people. The minimum fortune required to make the list increased to $1 billion.
Which industries create the most billionaire wealth in South Korea?
Major sources include technology, semiconductors, finance, biotechnology, automobiles, retail and investments. In 2026, the AI-driven semiconductor boom was particularly important for the country's richest people.
