Milford is a town in Hillsborough County, New Hampshire, United States, on the Souhegan River. The population was 15,115 at the 2010 census. It is the retail and manufacturing center of a six-town area known informally as the Souhegan Valley.

The town center of Milford, where 8,835 people resided at the 2010 census, is defined as the Milford census-designated place (CDP), and is located at the junction of New Hampshire routes 13 and 101A.

Milford separated from neighboring Amherst in 1794. Like most towns named Milford in the United States, its name comes from the fact that it grew around a mill built on a ford—in this case on the Souhegan River.

Milford was once home to numerous granite quarries, which produced a stone that was used, among other things, to make the pillars for the U.S. Treasury in Washington, D.C.—pillars that can be seen on the back of the American $10 bill, although it is unclear whether that will remain after the bill is redesigned. Its nickname remains "The Granite Town," although only one small quarry is in operation as of 2017.

Like many New England riverside towns, Milford developed several thriving textile mills in the 19th century. That industry left New England by World War II, but Milford remains the commercial and retail center for surrounding towns. Major employers included casting company Hitchiner Manufacturing Co., a metal cable manufacturer Hendrix Wire and Cable Inc. and a contract manufacturing solutions company, Cirtronics Corporation.

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