2015 (MMXV) was a common year starting on Thursday of the Gregorian calendar, the 2015th year of the Common Era (CE) and Anno Domini (AD) designations, the 15th year of the 3rd millennium and the 21st century, and the 6th year of the 2010s decade.
|2015 by topic|
|Lists of leaders|
|Birth and death categories|
|Establishments and disestablishments categories|
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2015 was designated by the United Nations as: