Ides

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. In March, May, July, August and October it was the 15th day of the month; in other months it was the 13th
 * Ides of March, a day in the Roman calendar that corresponded to March 15; it was marked by several religious observances and became notorious as the date of the assassination of Julius Caesar in 44 BC

People

 * Saint Ides, an Irish saint

Music

 * "St. Ides Heaven", a song by Elliott Smith, released on his album Elliott Smith (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 that had a major hit with the song "Vehicle" in 1970

Technology

 * Intrusion Detection Expert System or IDES
 * SAP AG's IDES, Internet Demonstration and Evaluation System

Other uses

 * St. Ides, a brand of malt liquor
 * Initiative for the Development of Soria or IDES, a regional political party in Spain
 * Illinois Department of Employment Security