Martin Joseph O'Malley is an American politician serving as the 17th and current commissioner of the Social Security Administration since December 2023. A member of the Democratic Party, he was the 61st governor of Maryland from 2007 to 2015 and the 48th mayor of Baltimore from 1999 to 2007.

The United States Social Security Administration (SSA) is an independent agency of the U.S. federal government that administers Social Security, a social insurance program consisting of retirement, disability and survivor benefits. To qualify for most of these benefits, most workers pay Social Security taxes on their earnings; the claimant's benefits are based on the wage earner's contributions. Otherwise benefits such as Supplemental Security Income (SSI) are given based on need.