| St. Mary High School | |
| Motto: | The Pursuit of Excellence Through Christ! |
| Streetaddress: | 1243 Elmdale Road |
| City: | Paducah |
| State: | KY |
| Zipcode: | 42003 |
| Country: | USA |
| Coordinates: | 37.0507°N -88.6447°W |
| Homepage: | www.smss.org |
| District: | Roman Catholic Diocese of Owensboro |
| Principal: | Douglas Shelton[1] |
| Schooltype: | Private |
| Grades: | 9–12 |
| Feeders: | St. Mary Middle School |
| Campus: | Small city |
| Accreditation: | Southern Association of Colleges and Schools[2] |
| Nickname: | Vikings and Lady Vikings |
| Yearbook: | "The Voyage" |
| Founded: | 1965 |
| Enrollment: | 163[3] |
| Enrollment As Of: | 2009–10 |
| Free Label3: | Athletic Director |
| Free Text3: | Brad Ehlers |
St. Mary High School is a private, Roman Catholic high school in Paducah, Kentucky. It is located in the Roman Catholic Diocese of Owensboro, and is part of the St. Mary School System, which also includes elementary and middle schools.
Founded in 1858 it has 98% of graduates attending college and 50% receiving scholarships. It has state champions in many sports teams and an award-winning music program.
Saint Mary Fight Song
Oh, When the Saint Mary Vikings come on the floor!
We're going to show everyone that we can score!
We're going to fight, fight, fight for Saint Mary High!
We're going to raise that score high up into the sky,
and when you see those colors gold and blue,
it is a sign that we are coming through!
We're going to knock you guys out on the floor out the door,
Saint Mary High. Hey!