Jackson is a town in Waldo County, Maine, United States.

The town was named after General Henry Jackson of the Revolutionary War.

It is bordered on the north by Dixmont, on the east by Monroe, on the south by Brooks and on the west by Thondike.

The topography is hilly, with high points at over 1,200 feet (370 m) on Mount Harris and other peaks to the north, remnants of the Appalachian chain.

The land area of the township is mostly forested, primarily a second growth northern mixed hardwood forest dominated by ash, poplar, oak, maple, pine, cedar, spruce, tamarack (larch) and hemlock.

There are areas that have never been managed or cultivated, particularly bogs and remnant primeval forest in which large pine, hemlock and spruce trees predominate.

The racial makeup of the town was 97.23% White, 0.99% Native American, and 1.78% from two or more races.