The genus name Ammodiscus may refer to:

  • Ammodiscus Reuss, 1862 (Chromista, Foraminifera, Ammodiscidae): Accepted senior homonym
  • Ammodiscus Carpenter In Carpenter & Jeffreys, 1871 (Animalia, Anthozoa, Octineonidae): Junior homonym, = Octineon Moseley In Fowler, 1894