Hillsboro High School may refer to any of several high schools in the United States:

Hillsboro High School (Illinois) Hillsboro High School (Kansas) Hillsboro High School (Missouri) Hillsboro High School (New Mexico), a historic building Hillsboro High School (North Dakota), Hillsboro, North Dakota Hillsboro High School (Ohio) Hillsboro High School (Oregon) Hillsboro High School (Tennessee), Nashville Hillsboro High School (Texas) Hillsboro High School (Wisconsin), a high school in Wisconsin Hillsboro-Deering High School, Hillsborough, New Hampshire