This category is for articles that describe aggressions, violence and mortal attacks on humans by other humans in year 2011.
See also: List of events named massacres
| Massacres by year | 2008 2009 2010 2011 2012 2013 2014 |
| Years | 2008 2009 2010 2011 2012 2013 2014 |
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Wikimedia Commons has media related to Category:Massacres by period. |
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