MiBank is the registered trading name for Nationwide Microbank Limited, incorporated in Papua New Guinea.  MiBank originated in 2004 as Microfinance project co-financed by Asian Development Bank, Australian Aid, and the Government of Papua New Guinea, under the then name of Wau Microbank.

MiBank is licensed and regulated by the Central Bank, Bank of Papua New Guinea. The Bank delivers modern and affordable, savings, loans and insurance products, from a network of 12 branches and many agents across Papua New Guinea.

MiBank is at the forefront of innovation, being the first licensed financial institution to deploy a Mobile Wallet in the South Pacific, called MiCash, and the first institution to introduce a Microinsurance product in Papua New Guinea called MiLife.

MiBank prides itself on diversity and women's banking is a key focus area. The Bank empowers women and grassroots people generally through financial literacy training and access to its products and services.

MiBank is the largest Microfinance institution in the South Pacific.