2011 outbreak may refer to:
Tornado outbreaks
2011 Super Outbreak 2011 Hackleburg–Phil Campbell tornado 2011 Tuscaloosa–Birmingham tornado 2011 Philadelphia, Mississippi tornado 2011 Smithville, Mississippi tornado Tornado outbreak of April 14–16, 2011 Tornado outbreak sequence of May 21–26, 2011 Derecho and tornado outbreak of April 4–5, 2011 Tornado outbreak of April 9–11, 2011 2011 New England tornado outbreak Tornado outbreak sequence of April 19–24, 2011 Tornado outbreak of June 18–22, 2011 Tornado outbreak of November 14–16, 2011
Other uses 2011 Germany E. coli O104:H4 outbreak, a foodborne illness outbreak 2011 dengue outbreak in Pakistan, a dengue fever outbreak in Pakistan 2011 Bulgaria foot-and-mouth disease outbreak, a Bulgaria foot-and-mouth disease outbreak 2011 United States listeriosis outbreak, an outbreak of listeriosis
See also April 2011 tornado outbreak (disambiguation)