ADIF

ADIF or Adif may refer to:

• Audio Data Interchange Format (ADIF), a file format to exchange Advanced Audio Coding (AAC) data; see Template:Section link
• Administrador de Infraestructuras Ferroviarias, a Spanish state-owned railway infrastructure company
• Administración de Infraestructuras Ferroviarias Sociedad del Estado, an Argentine state-owned railway infrastructure company