Grand Lake High School is a public grade 7-12[2] secondary school in Grand Lake, Louisiana, an unincorporated town in Cameron Parish, Louisiana, United States.

The school, a part of the Cameron Parish School Board, previously had all grades Pre-Kindergarten through 12.

The South Cameron students shared Grand Lake High School's campus with Grand Lake for almost an entire year.

the South Cameron elementary and high school students moved into the South Cameron High School campus by fall 2006.

[7][8] Grand Lake High athletics compete in the LHSAA.