Date of Birth: 
About Guðmundur Hólmar Jónsson
- Guðmundur Hólmar Jónsson (born April 28, 1979 in Akureyri) is a javelin thrower from Iceland.
- He won the 2010 European Team Championships, Third League, in javelin throw.
- Jónsson also became the Icelandic Champion in javelin throw in 2009 and 2010.
Read more at Wikipedia