Chantilly may refer to:

• Chantilly, a French city located in the Oise département in the Picardie région. The château de Chantilly is located there
• Chantilly, Virginia, an unincorporated area located in Fairfax County, Virginia, United States, and the site of the Battle of Chantilly
• The Chantilly Codex , a late medieval manuscript, and the primary source on the music of the ars subtilior
• chantilly cream, a whipped cream
• chantilly lace , a song by the Big Bopper, 1957