Dorchester is a city in Grayson County, Texas, United States.

According to the United States Census Bureau, Dorchester has a total area of 1.6 square miles (4.2 km2), all land.

The Howe district continues to educate students in the area today.

The Dorchester Dragon's School Song was originally written by Emily Juanita Stewart.

Russell Wortham of Howe is the last known recipient of the coveted "Dorchester Dragon Spirit Award" which was presented in 2010.