This Practice Note considers confidentiality and arbitration under the law of England and Wales (England and English are used as a convenient shorthand). For many parties, an important reason for agreeing to arbitrate, rather than litigate before national courts, is the understanding that arbitration is private and that disclosed documents and documents generated for the purposes of the arbitration (including the award) are typically subject to a blanket of confidentiality. For example, in the QMUL/White & Case 2010 survey, ‘Choices in International Arbitration’, 62% of respondents said that confidentiality was very important to them in international arbitration. In the 2015 survey, ‘Improvements and Innovations in International Arbitration’, confidentiality and privacy were in the top five most valuable characteristics of international arbitration. The Arbitration Act 1996 (AA 1996) is notably silent on confidentiality in arbitration, although the drafters of the AA 1996 did consider setting out the principles of confidentiality and ultimately found the task too difficult and controversial (see paragraphs [11]–[17] of the Departmental Advisory Committee on Arbitration Law—Report on the Arbitration