The term Daemon has several meanings:

• Daemon (mythology) - see also Demon
• Daemon (computer software), a background process
• Daemon (His Dark Materials) in the Philip Pullman trilogy of novels His Dark Materials
• Daemon (Warhammer)
• Daemon Sadi (SaDiablo) is a character in the Black Jewels Trilogy by Anne Bishop.
• The Dæmons is a serial in the British science fiction television series Doctor Who