Mahón, officially Maó, and also written as Mahon or Port Mahon in English, is the capital and second largest city of Menorca. The city is located on the eastern coast of the island, which is part of the archipelago and autonomous community of the Balearic Islands.
Mahón has one of the longest natural harbours in the world: 5 kilometres long and up to 900 metres wide. The water is deep but remains mostly clear due to the port's enclosed nature. Mayonnaise is considered to have originated in Mahón.
Its population in 2021 was estimated to be 29,125.