Mactan is a densely populated island located a few kilometres east of Cebu Island in the Philippines. The island is part of Cebu Province and it is divided into the city of Lapu-Lapu and the municipality of Cordova. The island is separated from Cebu by the Mactan Channel which is presently crossed by two bridges: the Mactan–Mandaue Bridge and the Marcelo Fernan Bridge, both of which connect Mandaue on the Cebu mainland and Lapu-Lapu on Mactan Island. A third bridge, the Cebu–Cordova Link Expressway, will connect the island, through Cordova, to Cebu City. The island covers some 65 square kilometres and is home of
568,199 people as of 2020 census, making it the nation's most densely populated island. Along with Olango Island Group, the isles are administered as 1 city and a municipality covering 75.25 square kilometres.
Mactan–Cebu International Airport is located on the island.