Hana Bank (Korean: 주식회사 하나은행; RR: Jusik Hoesa Hana Eunhaeng), known from its initial establishment in 1971 to 1991 as Korea Investment Finance Corporation (Korean: 한국투자금융), is one of South Korea's largest banks.

Hana Bank is the largest and longest-running exchange bank in South Korea, with 40% of South Korea's foreign exchange market.

In August 2002, it was announced that Seoul Bank, one of Korea's largest banks which had been determined as insolvent and taken into government ownership in December 1997, would be merged with Hana Bank, as the latter had been selected in a competitive bidding process against Lone Star Funds.

[2]: 35 Following years of efforts, Hana Financial Group merged Hana Bank and Korea Exchange Bank (KEB) and launched KEB Hana Bank in September 2015.

In January 2021, Hana Bank secured approval from Taiwan's financial authorities to open a branch in Taiwan, making it the first bank from South Korea to set up a foothold on the island.