Grand Blanc High School
| Grand Blanc High School | |
|---|---|
| Address | |
One Jewett Trail , 48439 United States  | |
| Coordinates | 42°55′7″N 83°37′29″W / 42.91861°N 83.62472°W | 
| Information | |
| Established | 1964 | 
| School district | Grand Blanc Community Schools | 
| Principal | Michael Fray | 
| Teaching staff | 122.01 (FTE) | 
| Enrollment | 2,470 (2023–2024) | 
| Student to teacher ratio | 20.24 | 
| Color(s) | Red and black | 
| Fight song | Onward to Victory | 
| Athletics conference | Saginaw Valley League | 
| Nickname | Bobcats | 
| Rival | Carman-Ainsworth High School | 
| Website | School website | 
| Student assessments | |
|---|---|
2021–22 school   year Change vs.  prior year  | |
| M-STEP 11th grade proficiency rates (Science / Social Studies)  | |
| Advanced % | 19.2 / 16.1 | 
| Proficient % | 32.1 / 33.4 | 
| PR. Proficient % | 12.8 / 38.3 | 
| Not Proficient % | 35.9 / 12.1 | 
| Average test scores | |
| SAT Total | 982.8  ( −31.4)  | 
Grand Blanc High School (GBHS) is a public high school in Grand Blanc, Michigan, in the United States. It is managed by Grand Blanc Community Schools.