Lake Weir High School (LWHS) is a public high school located in unincorporated southeastern Marion County, Florida, United States.

It is part of the Marion County School District and serves students residing in southeastern Marion County, including the Ocala National Forest, Silver Springs Shores and Summerfield.

The school colors are purple and gold and its mascot is the hurricane.

Lake Weir High School was established in 1955 as a consolidation of Weirsdale and Summerfield High Schools on a hill overlooking Lake Weir with a student body of about 300 students in grades 7 through 12.

The school served students coming from elementary schools at Belleview, Florida, Summerfield, Florida and Weirsdale, Florida that served the communities of Belleview, Candler, East Lake Weir, Ocklawaha, Pedro, Summerfield, Sunset Harbor, and Weirsdale.