Sandy Spring Bancorp, Inc. is a bank holding company headquartered in Olney, Maryland and operating in the Washington metropolitan area.

The company operates the following subsidiaries:[2] In 1868, farmers who were Quakers founded Sandy Spring Bank to pool their savings to make home loans to their neighbors.

[8][9][4] During the financial crisis of 2007–2008, the company received an investment of $82 million from the Troubled Asset Relief Program.

[10] In January 2009, Daniel J. Schrider was promoted to chief executive officer, succeeding Hunter R. Hollar.

[4] Virginia-based Atlantic Union Bankshares agreed to buy Sandy Spring Bancorp for $1.6 billion in an all-stock transaction in October 2024.