Mitsubishi UFJ Financial Group

is a Japanese bank holding and financial services company headquartered in Chiyoda, Tokyo, Japan. MUFG was created in 2005 by merger between and UFJ Holdings (株式会社UFJホールディングス; kabushikigaisha yūefujei hōrudingusu). These two groups in turn brought together multiple predecessor banks including Mitsubishi Bank (est. 1880), Yokohama Specie Bank (est. 1880 as a policy bank, reorganized after World War II as Bank of Tokyo), Sanwa Bank (est. 1933 by merger of prior institutions), and Tokai Bank (est. 1941 by merger).

MUFG holds assets of around US$2.7 trillion as of 2024 and is the parent company of fully owned MUFG Bank (branded Bank of Tokyo Mitsubishi UFJ or BTMU until July 2018), Mitsubishi UFJ Trust and Banking Corporation, Mitsubishi UFJ Securities, Mitsubishi UFJ Capital, and MUFG Americas Holdings Corporation; majority shareholder of Bank Danamon in Indonesia, Bank of Ayudhya in Thailand, and Mitsubishi UFJ NICOS in Japan; and a large minority shareholder in the Master Trust Bank of Japan, Morgan Stanley in the United States, Security Bank in the Philippines, and Vietinbank in Vietnam. It retains strong links with the Mitsubishi Group and is often described as one of that group's "Three Great Houses", together with Mitsubishi Corporation and Mitsubishi Heavy Industries.