Delta can signify:

• Δ or δ, a letter of the Greek alphabet. See delta (letter)

• A triangular area of alluvial deposit at the mouth of a river, roughly in shape of Δ. See river delta.

• The large triangular region of alluvial deposit at the mouth of the river Nile in Egypt, bordering the eastern Mediterranean Sea. See Nile Delta.

• Δ, in math, to express a change or difference in values, e. g. temperature

• In mathematical finance delta, δ, is one of "The Greeks"; delta measures the sensitivity of the value of a derivative to changes in the price of its underlying instrument.

• The oldest active Chapter of Alpha Phi Omega. See Delta (chapter)

• The letter D in the NATO phonetic alphabet, except in airports

• A female in police CB code. (Alpha represents a male)

• A type of connection in three phase electrical wiring.

• The Netherlands' "Delta" project to significantly reduce the risk of flooding in Holland.

• An airline company, Delta Air Lines

• A Greek dairy producer and manufacturer, See Delta Holdings S.A.

• Penelope Delta, a Greek writer/poet?

• 1st SFOD-Delta, a US counterterrorist unit.

• A computer, see Delta (computer)

• The Australian actress, singer and songwriter Delta Goodrem

• The American actress Delta Burke

• The German psychedelic trance project The Delta

Cities, villages and counties called Delta:

• Canada
  • Delta, British Columbia
• Nigeria
  • Delta State
• United States
  • Delta, Colorado
  • Delta, Iowa
  • Delta, Louisiana
  • Delta, Missouri
  • Delta, Ohio
  • Delta, Pennsylvania
  • Delta, Utah
  • Delta, Wisconsin
  • Big Delta, Alaska
  • Delta County, Colorado
  • Delta Charter Township, Michigan
  • Delta County, Michigan
  • Delta County, Texas
• Venezuela
  • Delta Amacuro State

See also:

• Delta-wing
• Dirac delta function
• Delta encoding
• Delta modulation
• the Delta Works
• Delta rocket
• Delta blues