Ceriadae or Keiriadai (grc|Κειριάδαι) was a deme of ancient Attica, of the phyle of Hippothontis, sending two delegates to the Boule.[1] It was located outside of the walls of Themistocles, west of the hill of the Nymphs and west of the Pnyx. In this deme there was the baratharon (βάραθρον), a chasm into which criminals condemned to death were thrown.
The site of Ceriadae is west of the Pnyx.[2]