Lake Apopka, Natural lake in Central Florida, United States.

Lake Apopka is a shallow lake of 125 km² (48 sq mi) in central Florida, about 24 km northwest of Orlando, mostly in Orange County with its western part in Lake County. Its average depth is 1.63 m and its maximum 4.9 m, at 20.1 m above sea level. It is fed by Apopka Spring, rainfall and runoff, and drains through the Apopka-Beauclair Canal toward Lake Beauclair.

In 1941, a major levee construction project significantly reduced the lake's original size to create space for farming. This engineering effort transformed the landscape and altered how the water flowed in the area.

Through the 1940s anglers travelled from across the United States to fish for trophy-sized bass in Lake Apopka, and 21 fish camps lined the shoreline. The lake's name comes from the Apopka people, and the spring-fed south-west end is still called Apopka Spring.

A walking trail follows the northern shore with several access points equipped with basic facilities like restrooms. This route lets visitors explore different sections of the shoreline and observe the local wildlife.

The 1996 Lake Apopka Restoration Act, signed by Governor Lawton Chiles, funded purchase of the north-shore farms that discharged phosphorus into the lake. On about 1,600 hectares of the North Shore Enhancement Area, modified farm equipment plowed up to a meter deep to flip contaminated soil under clean soil, a step finished in May 2009.