The genus name Macrodon may refer to:

  • Animalia:
    • Macrodon Schinz, 1822 (Actinopterygii: Sciaenidae) -- senior homonym
    • Macrodon Müller, 1843 (Actinopterygii: Erythrinidae) -- junior homonym = replaced by Hoplias Gill, 1903
    • Macrodon Buckman, 1845 (Bivalvia: Parallelodonta) -- junior homonym = accepted as Parallelodon Meek & Worthen, 1866
  • Plantae:
    • Macrodon Arnott, 1825, nom. rej. (Bryophyta: Dicranaceae) = synonym of Leucoloma Brid.