BES or Bes may refer to: Bes, Egyptian deity Bes (coin), Roman coin denomination Bes (Marvel Comics), fictional character loosely based on the Egyptian deity Abbreviations Bachelor of Environmental Studies, a degree Banco Espírito Santo, a Portuguese banking group Beryllium sulfide, formula BeS BES islands, Caribbean BES III, Beijing Spectrometer III, particle physics experiment BlackBerry Enterprise Server, software Brest Bretagne Airport, France, IATA code Bloodstream expression site, a transcription unit in a genome British Election Study People Cristina Bes Ginesta (born 1977), Catalan ski mountaineer