The 77 Bank, Ltd. (株式会社七十七銀行, Kabushiki-gaisha Shichijūshichi Ginkō) (TYO: 8341) is a Japanese regional bank headquartered in Sendai, Miyagi Prefecture. As the designated financial institution of the prefecture, the city, and many other cities and towns throughout the prefecture, it performs duties such as holding deposits for public money and handling payments. It is also the biggest regional bank in the Tōhoku region.