Dinsmore is an unincorporated community in Wharton County, Texas, United States.

[1] According to the Handbook of Texas, the community had a population of 250 in the early 1990s.

It is located within the Greater Houston metropolitan area.

Dinsmore is located on Farm to Market Road 1301, 2 mi (3.2 km) east of Wharton in Wharton County.

[2] Today, the community is served by the Wharton Independent School District.