is the federal district court whose territorial jurisdiction is the Commonwealth of Massachusetts, United States.

The second term was held in Salem in 1790 and court session locations alternated between the two cities until 1813.

The court's main building is the John Joseph Moakley Federal Courthouse on Fan Pier in South Boston.

[3] As of December 6, 2024[update]: Chief judges have administrative responsibilities with respect to their district court.

The chief judge serves for a term of seven years, or until age 70, whichever occurs first.