Tyngsborough (also spelled Tyngsboro) is a town in northern Middlesex County, Massachusetts, United States.

Tyngsborough is 28 miles (45 km) from Boston[1] along the Route 3 corridor, and located on the New Hampshire state line.

[2] By its location, the town serves as a suburb of neighboring cities such as Nashua, New Hampshire and Lowell, Massachusetts.

The town of Dunstable, incorporated in 1673, was named after the hometown of pioneer Edward Tyng.

Early on Tyngsborough residents fought a series of small and bloody skirmishes with local Native American tribes.

Evidence of this can be found in several old colonial homes in town that still have emergency passages that were used during these attacks.

After Tyngsborough was incorporated it became known for its ferries which traveled up and down the Merrimack River, the quarries that produced granite, and several box companies that started in town.

As the town developed, Tyngsborough became a vacation community and had a large seasonal resident population even up until the late 1960s.

A notable summer resident was actress Nance O'Neil, whose estate became the campus of the Academy of Notre Dame.

Today, Tyngsborough primarily serves as a bedroom community, part of Greater Lowell and the Nashua, New Hampshire region, in addition to having a relatively short commute to the Boston area.

At the federal level, Tyngsborough is a part of Massachusetts's 3rd congressional district, and is currently represented by Lori Trahan.

The school was named after Sarah Winslow, who acquired a trust from Harvard College that is still an income for Tyngsborough.