| Osceola High School | |
| City: | Osceola |
| County: | Polk County |
| State: | Wisconsin |
| Country: | USA |
| Zipcode: | 54020 |
| Address: | 1111 Oak Ridge Dr PO BOX 128 |
| Fundingtype: | Public |
| Grades: | 9 through 12 |
| Enrollment: | 521 (2017-18)[1] |
| Mascot: | Chieftain |
| Staff: | 33.76 (FTE) |
| Ratio: | 15.43 |
| Colors: | Green & white |
| Song: | Osceola Rouser[2] |
| Principal: | Scott Newton |
| Website: | School District of Osceola |
Osceola High School is a public school serving grades 9 through 12 in Osceola, Polk County, Wisconsin, United States. The motto of Osceola High School is "World class education with a small town feel." The small town of Osceola is located on the St. Croix River.
Osceola High School offers tennis, volleyball, football, dance line, cross country running, golf, basketball, wrestling, baseball, softball, track, and soccer under Wisconsin Interscholastic Athletic Association regulations. The school's nickname is the Chieftains.