Carolyn W. Colvin was the Acting Commissioner of Social Security Administration in the United States, appointed on February 14, 2013, having succeeded Michael J. Astrue. On June 20, 2014, President Barack Obama nominated her to serve as the commissioner. On September 18, 2014, the United States Senate Committee on Finance approved her nomination by a 22–2 vote. However, her nomination was never brought up for a vote before the full Senate.

In the United States, Social Security is the commonly used term for the federal Old-Age, Survivors, and Disability Insurance (OASDI) program and is administered by the Social Security Administration (SSA). The Social Security Act was passed in 1935, and the existing version of the Act, as amended, encompasses several social welfare and social insurance programs.