| MB Financial | |
| Company type | Public | 
| Nasdaq: MBFI | |
| Industry | |
| Predecessor | Mid-City National Bank Manufacturers National Bank [1]  | 
| Founded | 1911 [2] | 
| Defunct | March 22, 2019 | 
| Fate | Bought by Fifth Third Bank | 
| Successor | Fifth Third Bank | 
| Headquarters | ,  U.S.  | 
Area served  | Regional | 
| Products | Consumer banking, corporate banking, private banking, financial analysis, insurance, investment banking, mortgage loans, private equity, wealth management, credit cards | 
| Revenue | $979 million (2018) | 
| Website |  mbfinancial | 
MB Financial was a financial institution headquartered in Chicago, Illinois until its purchase by Fifth Third Bank in 2018, [3] which was then completed the following year. [4] The bank previously sponsored Bike the Drive from 2010 through 2018, at which point Fifth Third took over the sponsorship upon the purchase's completion.