People
* Marius Mercator (c. 390–451), a Catholic ecclesiastical writer * Arnold Mercator, a 16th-century cartographer *Companies and universities
* Mercator (retail), a Slovenian supermarket chain * Mercator-S, a retail company in Serbia, part of Agrokor Group * Mercator School of Management, University of Duisburg-Essen, Germany * Mercator Limited, a shipping company in India * Mercator Corporation, a consulting firm and investment bank formed by James Giffen, involved with KazakhgateVehicles
* ''Mercator'' (ship), a barquentine museum ship in Oostende, Belgium * P4M Mercator, a reconnaissance aircraft used by the United States Navy during the 1950s * QinetiQ Mercator, a British unmanned aerial vehicle (UAV) * and , a number of ships named ''Mercator''Other
* Mercator Telescope, a Belgian telescope installed in La Palma, Canary Islands * Mercator K55K, a type of pocketknife produced in Germany * ''Mercator'' (play), a comedic play by Plautus * IBM InfoSphere DataStage, software whose component ''DataStage TX'' was formerly known as ''Mercator'' and is now called ''WebSphere Transformation Extender'' * "Mercator", a song by P-MODEL from the album '' Perspective II'' * Mercator (crater), a lunar impact crater on the southwestern edge of Mare NubiumSee also
* Kaufmann (German) * Kofman or Koffman (Dutch) * Marchant (French) * Merchant (surname) {{disambig, surname Latin-language surnames