Sandy Valley High School is a public high school near Magnolia, Ohio, United States.

It is the only high school in the Sandy Valley Local Schools district.

Its mascot is a cardinal and its colors are red and gray.

A new high school building opened January 20, 2009.

Sandy Valley offers 8 boys and 8 girls sports in the Inter Valley Conference, including: Boys Football Division IV Girls Volleyball Division III Boys and Girls Cross Country Division III (Both) Boys and Girls Golf Division II (Boys) Division I (Girls) Boys Wrestling Division III Girls Gymnastics Division I Boys and Girls Basketball Division III (Both) Boys and Girls Bowling Division I (Both) Boys Baseball Division III Girls Softball Division III Boys and Girls Track and Field Division II (Both)