Abacus Federal Savings Bank
| Company type | Private | 
|---|---|
| Industry | Finance and insurance | 
| Founded | New York City (1984) | 
| Founder | Thomas Sung | 
| Headquarters | New York, New Jersey, and Pennsylvania | 
Key people  | Thomas Sung (Founder, Chairman of the Board)  Jill Sung (President and CEO)  | 
| Products | Banking | 
| Total assets | US$358.779 million (March 31, 2021) | 
| Website | www | 
Abacus Federal Savings Bank (Chinese: 國寶銀行) is an American bank founded in December 1984 by a group of business leaders from the Chinese American community in New York City.
Abacus was the only U.S. bank prosecuted in relation to the 2008 financial crisis; it was exonerated of all charges following a jury trial in 2015. The aggressive prosecution of Abacus, in contrast to the relatively lenient treatment received by the large banks, was questioned and criticized by various media outlets.
A documentary about the prosecution and exoneration of Abacus, Abacus: Small Enough to Jail, was nominated for the 2018 Academy Award for Best Documentary Feature.