Alexander is a town in Washington County, Maine, United States.

[2] The town is named for Alexander Baring, 1st Baron Ashburton, the British negotiator of the Webster–Ashburton Treaty which ended the Aroostook War in 1838–1839.

There were 399 housing units at an average density of 9.9 per square mile (3.8/km2).

The racial makeup of the town was 98.2% White, 1.0% Native American, and 0.8% from two or more races.

24.2% of all households were made up of individuals, and 6.2% had someone living alone who was 65 years of age or older.

19.4% of all households were made up of individuals, and 5.6% had someone living alone who was 65 years of age or older.