UCO Bank, formerly United Commercial Bank, is an Indian public sector bank, and financial services government owned body headquartered in Kolkata, founded on 6 January 1943. It is a medium sized public sector bank in India and ranked 1948 in Forbes Global 2000 list of year 2018 & ranked 80 on the Fortune India 500 list in 2020. During FY 2025–26, its total business was ₹5.90 lakh crore.