| Pleasant Plains High School | |
| Location: | 500 N. Cartwright Street Pleasant Plains, Illinois |
| Country: | United States |
| District: | Pleasant Plains Community Unit School District No. 8 |
| Principal: | Luke Brooks |
| Faculty: | 27.75 |
| Ratio: | 15.14 |
| Enrollment: | 420[1] |
| Enrollment As Of: | 2018–19 |
| Type: | Public |
| Grades: | 9 to 12 |
| Conference: | Sangamo |
| Slogan: | "Every Student, Everyday, a winner" |
| Motto: | Respect, Responsibility, Integrity |
| Mascot: | Cardinal |
| Colors: | Red and Blue |
| Established: | 1927 |
Pleasant Plains High School is a public high school located in Pleasant Plains, Illinois, United States. It is part of Pleasant Plains Community Unit School District No. 8. The school was built in 1927.
When the new buses were bought in 1941 they added Salisbury to the Pleasant Plains (Township High School at the time) district. This caused Salisbury High School to close and the students transferred to Pleasant Plains.
Pleasant Plains High School used to be called Pleasant Plains Township High School.
99.0% Caucasian
0.8% African American
0% Hispanic
.2% Asian
0% Multi-Racial