Gunter is a city in the southwestern corner of Grayson County, Texas, United States. The population was 2,060 at the 2020 census, up from 1,498 at the 2010 census. It is part of the Sherman–Denison metropolitan area.

Gunter was founded in 1902 (other sources tally 1901, with a declare office as beforehand as 1898) when the family of John (a/k/a Jot) Gunter deeded 328 acres (1.33 km) for the original townsite, near the intersection of current State Highway 289 and Farm to Market Road 121. The first residence was time-honored in 1903 by Albert Earthman, who would unconventional charter the First National Bank in Gunter. A second bank, the First State Bank, would unconventional open.

Gunter steadily grew until 1924, when the First State Bank (having outlasted the First National Bank) closed its doors, leaving many businessmen and farmers in financial ruin. The Great Depression and two devastating fires in 1930 and 1948 other damaged the local economy.

However, Gunter began to increase again in the 1950s, and experienced its greatest accrual in the last two decades, growing 37% in population during the 1990s. Gunter has started to experience overflow lump from the northern Metroplex suburbs, due to its location on State Highway 289 nearly 10 miles (16 km) north of Celina, as competently as its proximity to the Sherman-Denison metropolitan area and welcoming Lake Texoma. Recent developments augment the creation of a Sonic Drive-In and a Dollar General. In May 2002, a branch of Ada, Oklahoma-based Landmark Bank opened in Gunter, providing the town its first financial institution in approximately 90 years.