Exchange may mean:

• Trade, transaction, or barter, the voluntary exchange of goods and/or services
  • Social exchange
• Exchange rule, from Mathematical Logic
• The exchange (chess), the value difference between rook and a bishop or knight
• Public exchange, see Public opinion
• National Exchange Club, a civic organization
• Prisoner exchange, a swap of prisoners by opposing sides in a conflict

In communications and technology:

• Telephone exchange
• Internet Exchange Point
• Microsoft Exchange Server, an email server software product from Microsoft
• Microsoft Exchange Client, the former companion client software for Exchange Server that was embedded into some versions of Microsoft Windows.

In finance

• exchange (organized market)

In music:

• Exchange (album), a 1999 split EP by the punk bands Against All Authority and The Criminals
• Lindy Exchange, a type of swing dance event
• The name of two songs by Massive Attack which appear on their album Mezzanine.

In science:

• Hydrogen-deuterium exchange
• Exchange symmetry in quantum mechanics, which refers to the physical consequences of the indistinguishability postulate of quantum statistics
• Exchange interaction in quantum mechanics, an interaction among indistinguishable particles.

In place names:

• Exchange, Indiana
• Exchange, West Virginia

• London Gold Exchange
  londongoldexchange.com
  Digital currency exchange provider for e-gold, e-silver, e-Bullion, Pecunix, Phoenix Silver and 1mdc. An array of services to allow the exchange of currencies backed by precious metals.
• ElectrumX
  electrumx.com
  Digital currency exchange for e-gold and e-Bullion. Buy, sell or transfer precious metal backed currencies through this service.
• IceGold
  icegold.com
  Digital currency exchange for e-gold and 1mdc. Allowing the transfer of funds to and from precious metal backed currencies.