The United Nations Office at Geneva (UNOG, French: Office des Nations Unies à Genève) in Geneva, Switzerland, is one of the four major offices[a] of the United Nations where numerous different UN agencies have a joint presence.

The United Nations and its specialized agencies, programmes and funds may have other offices or functions hosted outside the Palais des Nations, normally in office spaces provided by the Swiss Government.

UN specialised agencies and other UN entities with offices in Geneva hold bi-weekly briefings at the Palais des Nations, organized by the United Nations Information Service at Geneva.

UNOG produces an annual report[1] where it lists all major events and activities that happened through a year.

The United Nations Library & Archives Geneva is part of the UNOG.