International Years
- 2024 - International Year of Camelids
- 2022 - International Year of Artisanal Fisheries and Aquaculture
- 2019 - International Year of Indigenous Languages
International Year of the Periodic Table of Chemical Elements
International Year of Moderation - 2018 - International Year of the Reef
- 2017 - International Year of Sustainable Tourism for Development
- 2016 - International Year of Pulses
- 2015 - International Year of Light and Light-based Technologies
- 2014 - International Year of Crystallography
International Year of Small Island DevelopingStates
International Year of Solidarity with the Palestinian People - 2013 - Mathematics of Planet Earth 2013
International Year of Water Cooperation - 2012 - International year of Cooperatives
- 2011 - International Year of Chemistry
International Year of Forests - 2010 - International Year for the Rapprochement of Cultures
-International Year of Biodiversity - 2009 - International Year of Reconciliation
International Year of Astronomy
International Year of Natural Fibres
Year of the Gorilla
International Year of Human Rights Learning - 2008 - International Year of Planet Earth
International Year of Languages - 2005 - International Year for Sport and Physical Education
- 2004 - International Year to Commemorate the Struggle against Slavery and its Abolition
- 2003 - International Year of Freshwater
- 2002 - United Nations Year for Cultural Heritage
For a comprehensive list of all years the United Nations and its Specialized Agencies observe see International Years