Ides or IDES may refer to:
Calendar dates Ides (calendar), a day in the Roman calendar that fell roughly in the middle of the month Ides of March, a day in the Roman calendar that corresponded to March 15
Music "St. Ides Heaven", a song by Elliott Smith, on his self-titled album "St. Ides of March", a song by Soledad Brothers (band) "The Ides of March", a song by Iron Maiden The Ides of March (band), an American rock band
Other uses Intrusion Detection Expert System (IDES), an SRI International software product Saint Ides (c. 480 – c. 570), an Irish saint St. Ides, a brand of malt liquor Initiative for the Development of Soria or IDES, a Spanish political party Illinois Department of Employment Security
See also IDE (disambiguation) St. Ides (disambiguation) Idis (Germanic), a being in Germanic paganism