Gunter is a city in the southwestern corner of Grayson County, Texas, United States.

Gunter was founded in 1902 (other sources report 1901, with a post office as early as 1898) when the family of John (a/k/a Jot) Gunter deeded 328 acres (1.33 km2) for the original townsite, near the intersection of current State Highway 289 and Farm to Market Road 121.

Gunter has started to experience overflow growth from the northern Metroplex suburbs, due to its location on State Highway 289 approximately 10 miles (16 km) north of Celina, as well as its proximity to the Sherman-Denison metropolitan area and nearby Lake Texoma.

[5] The climate in this area is characterized by hot, humid summers and generally mild to cool winters.

Gunter is led by a six-person City Council, consisting of the Mayor and five members, all of which are elected at-large.