Lely High School is a four-year public high school located in Lely Resort, Collier County, Florida, about 10 miles (16 km) southeast of Downtown Naples.

The school serves Naples Manor, Marco Island, Lely, Verona Walk, and some unincorporated areas of Collier County.

As a result, Lely was becoming overcrowded, so three new buildings were added onto the school.

When the 2010-11 year zone change took place, students were placed into Golden Gate from Naples and Lely High to keep the student populations equal.

The school is home to several extracurricular clubs and honor societies.