List of United States senators from Massachusetts

Current delegation

Below is a chronological listing of the United States senators from Massachusetts. According to the Seventeenth Amendment to the United States Constitution adopted in 1913, U.S. senators are popularly elected for a six-year term. Elections are held the first Tuesday after November 1, and terms begin on January 3, about two months after the vote. Before 1914, and the enforcement of the Seventeenth Amendment, the state's U.S. senators were chosen by the Massachusetts General Court, and before 1935, their terms began March 4.

The current senators are Democrats Elizabeth Warren and Ed Markey. Ted Kennedy was Massachusetts's longest-serving senator, serving from 1962 until his death in 2009. Massachusetts is one of fifteen states alongside Arizona, Colorado, Florida, Georgia, Hawaii, Idaho, Indiana, Louisiana, Maine, Minnesota, Missouri, Nevada, South Dakota and Utah to have a younger senior senator and an older junior senator.