Lester B. Pearson High School can refer to:Lester B. Pearson High School (Calgary), in Calgary, Alberta Lester B. Pearson High School (Burlington), in Burlington, Ontario Lester B. Pearson High School (Montreal), in Montreal, Quebec Lester B. Pearson Catholic High School, in Ottawa, Ontario Lester B. Pearson Collegiate Institute, in Toronto, Ontario Lester B. Pearson United World College of the Pacific on Vancouver Island, British Columbia