Changi is an area located at the easternmost part of Singapore. Its name is believed to be derived from the Chengai tree, a tall tree that used to grow in the district. Landmarks in the area include Changi International Airport, Changi Prison and Changi Village, with Changi Point at its heart.

The name "Changi" for Singapore's famous airport and district is derived from the Changi tree (Hopea sangal), which was once a prominent feature of the local landscape. In the early 19th century, the area was a dense jungle, and these towering trees were used as landmark navigators for sailors approaching the coast. Another popular theory suggests it comes from the Chengai (Balanocarpus heimii), a heavy hardwood tree used for boat building. By the time the British established a military presence in the area in the 1920s, the name was firmly cemented in local Malay and colonial records. Today, Changi Airport honors this botanical heritage by maintaining extensive indoor gardens and greenery, ensuring that the "Garden City" identity remains the first impression for millions of international travelers landing on the site of the former jungle.