Shadybrook is a census-designated place (CDP) in Cherokee County, Texas, United States.

[3] The CDP is located in the northwestern corner of the county adjacent to Lake Palestine, and takes its name from a gated community located on either side of Farm to Market Road 346.

The CDP includes the namesake development along with other developments and individually owned houses in the area.

[5] According to the United States Census Bureau, the CDP has a total area of 9.3 square miles (24.0 km2), of which 7.7 square miles (20.0 km2) is land and 1.5 square miles (4.0 km2), or 16.68%, is water, consisting of part of Lake Palestine.

Shadybrook first appeared as a census designated place in the 2010 U.S.