Affton High School
| Affton High School | |
|---|---|
Front of the Affton High School  | |
| Address | |
8309 Mackenzie Road ,  | |
| Coordinates | 38°33′34″N 90°19′25″W / 38.5594°N 90.3235°W | 
| Information | |
| Type | Comprehensive high school | 
| Motto | "Finish Strong" | 
| Established | 1930 | 
| School district | Affton School District | 
| Superintendent | Travis Bracht | 
| NCES School ID | 290291000009 | 
| Principal | George Calhoun | 
| Teaching staff | 50.40 (on an FTE basis) | 
| Grades | 9–12 | 
| Enrollment | 739 (2023-2024) | 
| Student to teacher ratio | 14.66 | 
| Color(s) | Purple and gold | 
| Athletics conference | Suburban Central Conference | 
| Mascot | Cougar | 
| Rival | Bayless Senior High School | 
| Newspaper | The Cougars Tale | 
| Website | ahs | 
Affton High School is a public comprehensive high school in Affton, St. Louis County, Missouri that is part of the Affton School District.