Atwell is an unincorporated community in Callahan County, in the U.S. state of Texas.

[1] According to the Handbook of Texas, only eight people lived in the community in 2000.

Atwell is located in eastern Callahan County.

[2] A school was established in Atwell around 1886 and was named Bell Branch, then Flag Springs.

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