Maceió, city, capital of Alagoas estado (state), northeastern Brazil. It is situated below low bluffs on a level strip of land between the Atlantic Ocean and the Norte (or Mundaú) Lagoon, a shallow body of water extending inward for several miles. Formerly called Macayo, the city dates from 1815, when a small settlement there was made a villa. In 1839 it became capital of Alagoas (then a provincia) and was given city status.