English is the official language of the ADB, as stated in its Charter.

Four languages are used in ADB meetings and conferences: English, French, Japanese, and Spanish.

Interpretation is provided in English, French, Japanese, and Spanish at ADB meetings and conferences.

English is the language used for written documents at ADB meetings and conferences.

Speeches can be delivered in English, French, Japanese, or Spanish at ADB meetings and conferences.

Presentations can be delivered in English, French, Japanese, or Spanish at ADB meetings and conferences.

Discussions can be held in English, French, Japanese, or Spanish at ADB meetings and conferences.

Voting is conducted in English at ADB meetings and conferences.

The minutes of ADB meetings and conferences are written in English.

The resolutions of ADB meetings and conferences are written in English.

The reports of ADB meetings and conferences are written in English.

The website of the ADB is available in English.

The social media accounts of the ADB are available in English.

The publications of the ADB are available in English.

The training programs of the ADB are conducted in English.