School Directory
| School/Organization | City | State | Country |
|---|---|---|---|
| Oak Grove High School | Winston Salem | North Carolina | United States |
| Oak Mountain High School | Birmingham | Alabama | United States |
| Oak Ridge High School | Conroe | Texas | United States |
| Oakridge High School | Muskegon | Michigan | United States |
| Oaks Christian School | Westlake Village | California | United States |
| Oakwood High School and Junior High School | Oakwood | Ohio | United States |
| Oconto Falls School District | Oconto Falls | Wisconsin | United States |
| Oconto High School | Oconto | Wisconsin | United States |
| Odessa High School | Odessa | Missouri | United States |
| Ohio State University Wexner Medical Center | Columbus | Ohio | United States |
| Okarche High School | Okarche | Oklahoma | United States |
| Oliver P. Morton High School | Hammond | Indiana | United States |
| Ontario Christian High School | Ontario | California | United States |
| Ooltewah High School | Ooltewah | Tennessee | United States |
| Orange Grove High School | Orange Grove | Texas | United States |
| Orange High School | Hillsborough | North Carolina | United States |
| Orange Vista High School | Perris | California | United States |
| Oratory Preparatory School | Summit | New Jersey | United States |
| Osseo-Fairchild High School | Osseo | Wisconsin | United States |
| Othello High School | Othello | Washington | United States |
| Our Lady of Good Counsel High School | Olney | Maryland | United States |
| Owasso High School | Owasso | Oklahoma | United States |
| Pacifica Christian Orange County | Newport Beach | California | United States |
| Palatine High School | Palatine | Illinois | United States |
| Palestine Westwood High School | Palestine | Texas | United States |
| Palm Beach Gardens High School | Palm Beach Gardens | Florida | United States |
| Palma High School | Salinas | California | United States |
| Palmer High School | Palmer | Massachusetts | United States |
| Palmview High School | Mission | Texas | United States |
| Palo Verde High Magnet School | Tucson | Arizona | United States |
| Paragould School District | Paragould | Arkansas | United States |
| Paris Chisum High School | Paris | Texas | United States |
| Parish Episcopal School | Dallas | Texas | United States |
| Park Crossing High School | Montgomery | Alabama | United States |
| Park Hill South High School | Riverside | Missouri | United States |
| Parkland High School | Winston-Salem | North Carolina | United States |
| Parkway West High School/Mercy Sports Medicine | Ballwin | Missouri | United States |
| Parowan High School | Parowan | Utah | United States |
| PASS School | Harrison City | Pennsylvania | United States |
| Pathfinder Regional Vocational High School | Palmer | Massachusetts | United States |
| Patrick F. Taylor Science and Technology | Avondale | Louisiana | United States |
| Paul Laurence Dunbar | Lexington | Kentucky | United States |
| Pawling Central School District | Pawling | New York | United States |
| Peddie School | Hightstown | New Jersey | United States |
| Pelion High School | Pelion | South Carolina | United States |
| Pendleton Heights High School | Pendleton | Indiana | United States |
| Penn Trafford High School | Harrison City | Pennsylvania | United States |
| Penn-Trafford High School | Harrison City | Pennsylvania | United States |
| Penn-Trafford High School/Excela Health Orthopedics and Sports Medicine | Harrison City | Pennsylvania | United States |
| Peshtigo High/Middle School | Peshtigo | Wisconsin | United States |
| Petal High School | Petal | Mississippi | United States |
| Pharr-San Juan-Alamo Independent School District | Pharr | Texas | United States |
| Phillips Exeter Academy | Exeter | New Hampshire | United States |
| Phoenix Country Day School | Paradise Valley | Arizona | United States |
| Phoenix High School | Phoenix | Oregon | United States |
| Pickerington High School Central | Pickerington | Ohio | United States |
| Piedra Vista High School | Farmington | New Mexico | United States |
| Pike Central High School | Petersburg, IN | Indiana | United States |
| Pine Crest School | Ft. Lauderdale | Florida | United States |
| Pine Ridge High School | Deltona | Florida | United States |
| Piner High School | Santa Rosa | California | United States |
| Pingree School | S. Hamilton | Massachusetts | United States |
| Pittsburgh Central Catholic High School/UPMC Sports Medicine | Pittsburgh | Pennsylvania | United States |
| Pius X High School | Lincoln | Nebraska | United States |
| Plainfield High School-Central Campus | Plainfield | Illinois | United States |
| Pleasant Valley High School | Bettendorf | Iowa | United States |
| Pleasantville Public Schools | Pleasantville | New Jersey | United States |
| Plum City High School | Plum City | Wisconsin | United States |
| Plymouth Whitemarsh High School | Plymouth Meeting | Pennsylvania | United States |
| Ponca City High School | Ponca City | Oklahoma | United States |
| Ponderosa High School/Douglas County School District | Parker | Colorado | United States |
| Portage High School | Portage | Indiana | United States |
| Portola High School | Irvine | California | United States |
| Prince Edward County High School | Farmville | Virginia | United States |
| Prince George H.S. | Prince George, | Virginia | United States |
| Princeton Community High School | Princeton | Indiana | United States |
| Providence Christian Academy | Lilburn | Georgia | United States |
| Punahou School | Honolulu | Hawaii | United States |
| Putnam City North High School | Oklahoma City | Oklahoma | United States |
| Putnam Valley CSD | Putnam Valley | New York | United States |
| Quaker Valley High School | Leetsdale | Pennsylvania | United States |
| Quakertown Community School District | Quakertown | Pennsylvania | United States |
| Queens Lake Middle School | Williamsburg | Virginia | United States |
| Quen Creek High School | Queen Creek | Arizona | United States |
| R. B. Glenn High School | Kernersville | North Carolina | United States |
| Rainier Beach High School | Seattle | Washington | United States |
| Rancho Verde High School | Moreno Valley | California | United States |
| Rangeview High School/Aurora Public Schools | AURORA | Colorado | United States |
| Ranney School | Tinton Falls | New Jersey | United States |
| Ravenscroft School | Creedmoor | North Carolina | United States |
| Ray D. Corbett Junior High School | Schertz | Texas | United States |
| Raymondville Early College High School | Raymondville | Texas | United States |
| Real Salt Lake Academy | Herriman | Utah | United States |
| Redmond High School | Redmond | Oregon | United States |
| Reedley High School | Reedley | California | United States |
| Reedsburg Area High School | Reedsburg | Wisconsin | United States |
| Richardson High School | Richardson | Texas | United States |
| Ridgefield Memorial High School | Ridgefield | New Jersey | United States |
| Rio Grande High School | Albuquerque | New Mexico | United States |
| Rio Rancho High School | Rio Rancho | New Mexico | United States |