Clay High School is a public high school in Oregon, Ohio, United States, east of Toledo. It is the only high school in the Oregon City School District. The school is named for Jeremiah Clay, who donated his farmland for the school to be built on. Over the last few years the Clay High School Campus has undergone remodeling. An addition was made to the main building, while the old elementary and the Annex were demolished. The Main building also was gutted and redone.