Grant High School may refer to the following schools:

Australia

  • Grant High School (Mount Gambier), South Australia

United States

  • Grant Community High School in Fox Lake, Illinois
  • Grant County High School in Dry Ridge, Kentucky
  • Grant High School (Louisiana), part of the Grant Parish School Board in Louisiana
  • Grant High School (Los Angeles), in Valley Glen
  • Grant High School (Portland, Oregon)
  • Grant Union High School (John Day, Oregon)
  • Grant Union High School (Sacramento, California)
  • U. S. Grant High School (Oklahoma), in Oklahoma City