List of last surviving World War I veterans

This a list of known veterans of World War I who died in 2009 (5 veterans), 2010 (1 veteran), 2011 (2 veterans) and 2012 (1 veteran). Florence Green, who died on 4 February 2012, was the last surviving veteran of any nation.
Veterans by country of service – 9 veterans.
These people served in the armed forces during World War I.
Unverified World War I veterans – 4 veterans.
Listed here are the veterans who were not verified as a World War I veteran.
World War I era veterans – 6 veterans.
Listed here are those that joined the armed services after the Armistice date, but before the Treaty of Versailles was signed, or where there is debate on their join-date, or whose military service is sometimes viewed as outside the scope of "WWI", but are considered World War I-era veterans by the press or by their respective governments, or served in a related conflict.