| Slinger High School | |
| Streetaddress: | 209 Polk Street |
| Zipcode: | 53086 |
| Country: | United States |
| Coordinates: | 43.3308°N -88.2847°W |
| Superintendent: | James Curler |
| Principal: | Philip Ourada |
| Teaching Staff: | 62.37 (FTE) (2021–22) |
| Ratio: | 17.14 (2021–22) |
| Type: | Public high school |
| Grades: | 9-12 |
| Song: | Onward Victorious |
| Fight Song: | Slinger Fite Song |
| Mascot: | Hootie the Owl |
| Team Name: | Owls |
| School Colours: | Scarlet, white and Royal blue [1] |
| Newspaper: | Nite Crier |
| Enrollment: | 1,069 (2021–22)[2] |
Slinger High School is a public high school in Slinger, Wisconsin (U.S.). It is administered by the Slinger School District. Its athletic teams are named the Owls.
The school's marching band performed at the 2001 Presidential Inauguration parade and the 2009 London New Year's Day Parade, as well as performing in Hawaii for the Thanksgiving Day Parade.