Dennis is a city in Parker County, Texas, United States.

On September 20, 2022, the U.S. Census Bureau notified the Geographic Names Information Service of the upgrade to city status.

[3] N. M. Dennis, a local judge, founded the community at the spot of a bridge across the Brazos River in 1892.

The town includes a post office, a volunteer fire station,[20] Dennis First Baptist Church, and Sugar Tree Golf Course,.

[22] In 1892, after a bridge was built across the Brazos River, Judge N. M. Dennis, a Parker County lawyer and farmer, developed the community to serve the farmers and ranchers of the area.