Deltic

Deltic or Deltics may refer to:


 * Napier Deltic, a diesel engine
 * British Rail DP1 ("Deltic") a prototype locomotive built by English Electric fitted with the Deltic Engine
 * British Rail Class 55, production locomotives powered by Deltic engines
 * British Rail Class 23, "Baby Deltic" production locomotives powered by Deltic engines
 * Deltic Preservation Society
 * Deltic acid, a chemical whose molecular backbone resembles the Greek letter delta (Δ)
 * Deltaic or deltic
 * Deltics (album), a music album by Chris Rea