Preston High School is a four-year public secondary school in Preston, Idaho, the only traditional high school in the Preston School District #201.

The school colors are blue, white, and gold and the mascot is a Native American.

[3] PHS was one of the primary filming locations for the 2004 hit movie Napoleon Dynamite, where movie director Jared Hess graduated in 1997.

Preston competes in athletics in IHSAA Class 4A in the Great Basin (East) Conference with Pocatello and Century of Pocatello.

Longtime in Class A-2 and its successor 3A, Preston moved up to 4A in 2004.