What are the big 4 banks in Korea?

Written by Editorial Team | Last Updated: August 2026

South Korea's financial services industry is led by four premier banking groups that dominate domestic lending, retail accounts, and international financial operations. The first is KB Financial Group, anchored by Kookmin Bank, which boasts the largest customer base and most extensive retail branch network in the country. The second is Shinhan Financial Group, featuring Shinhan Bank, celebrated for its innovative digital banking ecosystem, global expansion, and strong profitability metrics. The third is Hana Financial Group, known for strong corporate banking capabilities and strategic currency exchange services. The fourth is Woori Financial Group, a historic financial institution providing comprehensive commercial, retail, and international banking services across urban and regional South Korean markets.

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