ATP International Series | International Monetary Fund | International Red Cross and Red Crescent Movement | ATP International Series Gold | International Space Station | The Church of Jesus Christ of Latter-day Saints | Amnesty International | Green Day | International Olympic Committee | BirdLife International | International Finance Corporation | International Organization for Standardization | International Telecommunication Union | International Criminal Court | One Day International | International Nonproprietary Name | International Labour Organization | International Civil Aviation Organization | International Boxing Federation | Toronto International Film Festival | New Year's Day | International Atomic Energy Agency | Boxing Day | Memorial Day | International Maritime Organization | International Development Association | John F. Kennedy International Airport | Seventh-day Adventist Church | Labor Day | Los Angeles International Airport |
It is a parodic holiday, following in the footsteps of International Talk Like a Pirate Day and the Pastafarian holiday, Holiday.