The 26th Infantry Division was an infantry division of the United States Army. A major formation of the Massachusetts Army National Guard, it was based in Boston, Massachusetts for most of its history. Today, the division's heritage is carried on by the 26th Maneuver Enhancement Brigade.

The 26th Maneuver Enhancement Brigade ("Yankee") is a combat support brigade of the United States Army. Its headquarters is maintained by the Massachusetts Army National Guard. It draws its lineage from the Headquarters Company 26th Infantry Division.