The Key West Tropical Forest & Botanical Garden is a frost-free arboretum and botanical garden containing a collection of trees, shrubs, and palms, including several "champion tree" specimens.

It is located on Stock Island in the municipality of Key West, Florida, United States.

The Garden includes seven trees that are designated either champions or challengers within the National Champion Tree system adjudicated by American Forests and the Florida Division of Forestry.

Champions are determined by height, circumference of the trunk, crown spread, and physical condition.

Other native and imported trees and shrubs in the Garden include: