Martin O'Malley, American soldier, lawyer, and politician, 61st Governor of Maryland
Martin Joseph O'Malley (born January 18, 1963) is an American lawyer and politician who served as the 61st Governor of Maryland from 2007 to 2015. A member of the Democratic Party, he was Mayor of Baltimore from 1999 to 2007.

O'Malley was elected mayor of Baltimore in 1999 after a surprise win in the Democratic primary. As mayor, O'Malley prioritized reducing crime within the city. He was reelected in 2004. O'Malley won the 2006 gubernatorial election, defeating incumbent Republican governor Bob Ehrlich. During his first term, O'Malley implemented Maryland StateStat and became the first governor to sign the National Popular Vote Interstate Compact. O'Malley won reelection in 2010. In 2011, he signed a law that would make illegal immigrants brought to the United States as children eligible for in-state college tuition. In 2012, he signed a law to legalize same-sex marriage in Maryland. Both laws were approved in referenda in the 2012 general election. O'Malley served as the chair of the Democratic Governors Association from 2011 to 2013. After leaving office in 2015, O'Malley was appointed to The Johns Hopkins University's Carey Business School as a visiting professor focusing on government, business and urban issues.

Long rumored to have presidential ambitions, O'Malley publicly announced his candidacy for the 2016 Democratic presidential nomination on May 30, 2015. One of six major candidates, O'Malley struggled to gain support, and he suspended his campaign on February 1, 2016, after finishing third in the Iowa caucuses. He endorsed Hillary Clinton four months later.

In 2019, O'Malley's first book Smarter Government: How to Govern for Results in the Information Age was published. The companion Smarter Government Workbook: A 14-Week Implementation Guide to Governing for Results was published in 2020.