Nondisclosure Agreement Non Disclosure Agreement Non-disclosure Agreement Vertraulichkeitsvereinbarung Nondisclosure Agreement Acuerdo de confidencialidad Acuerdo de confidencialidad Accord de non-divulgation הסכם סודיות गोपनीयता समझौता 秘密保持契約 Acordo de confidencialidade 保密协议 NDA A Nondisclosure Agreement (NDA) is a legal contract between two or more parties that outlines confidential material, knowledge, or information that the parties wish to share with one another for certain purposes, but wish to restrict access to or by third parties.