Stephen M. Sweeney is an American politician and labor leader who served in the New Jersey Senate from 2002 to 2022, representing the 3rd legislative district. A member of the Democratic Party, he was the 114th President of the New Jersey Senate from 2010 to 2022.

The New Jersey Senate is the upper house of the New Jersey Legislature by the Constitution of 1844, replacing the Legislative Council. There are 40 legislative districts, representing districts with an average population of 232,225. Each district has one senator and two members of the New Jersey General Assembly, the lower house of the legislature. Prior to the election in which they are chosen, senators must be a minimum of 30 years old and a resident of the state for four years to be eligible to serve in office.