Lester B. Pearson High School (French: École secondaire Lester B. Pearson) is an English language secondary school located in Montreal North, a borough of Montreal, Quebec, Canada. It is part of the English Montreal School Board. It was established in 1976. The Canadian student press, Learning for a Cause, was founded here in 2004. The school is also known for its unique student-athlete academic program.

Prior to 1998, it was operated by the Montreal Catholic School Commission.^[1]