Orlando International Airport (IATA: MCO, ICAO: KMCO, FAA LID: MCO) is a public airport located six miles (10 km) southeast of the central business district of Orlando, a city in Orange County, Florida, United States. It is the busiest airport in Florida (by the number of passengers) owing to Orlando's popularity as a tourist destination and its enormous residential and commercial growth. In 2006 it was visited by 34.8 million passengers, making it the 13th busiest airport in the United States and the 24th-busiest in the World.

A major factor in Orlando's growth occurred in 1970, when the new Orlando International Airport was built from a portion of McCoy Air Force Base. Four airlines began providing scheduled flights in 1970. The military base officially closed in 1974, and most of it is now part of the airport. The airport still retains the former Air Force Base airport code (MCO). It is considered a world-class facility, and it is one of the most heavily travelled airports in the world.

Orlando is best known for the many tourist attractions in the area, particularly the nearby Walt Disney World Resort, which is in the Reedy Creek Improvement District . Other area attractions include SeaWorld and Universal Orlando Resort. Despite being far from the main tourist attractions, downtown Orlando has recently seen much redevelopment, with many more projects currently under construction or planned. Orlando sees an estimated 52 million tourists a year. Orlando is the 2nd largest city in the country for number of hotel rooms. It is a leader in medical care and research, especially at Florida Hospital which has been recognized by US News and World Report as one of America's top hospitals for eight consecutive years, and Orlando Regional Medical Center, the only statutory teaching hospital in Central Florida.