Waukesha South High School
| Waukesha South High School | |
|---|---|
| Address | |
401 E. Roberta Ave ,  | |
| Coordinates | 42°59′36″N 88°13′22″W / 42.99333°N 88.22278°W | 
| Information | |
| Type | Public high school | 
| Established | 1957 | 
| School district | Waukesha School District | 
| Principal | Maria D'Amato-Kuche | 
| Teaching staff | 73.05 (FTE) | 
| Grades | 9–12 | 
| Enrollment | 890 (2022–23) | 
| Student to teacher ratio | 12.18 | 
| Campus | Suburban | 
| Color(s) | Red, white, and black | 
| Athletics | www.goblackshirts.com | 
| Mascot | Cardinal (Blackie the Blackshirt) | 
| Newspaper | The Blackshirt | 
| Yearbook | Megaphone | 
| Website | http://www.waukeshasouth.com | 
Waukesha South High School is one of three high schools located in Waukesha, Wisconsin. It was opened in 1957 as a southern campus to Waukesha High School, then in downtown Waukesha. The downtown campus is now Les Paul Middle School – Central Campus.