Who has the record of holding their breath in the Guinness Book of World records?

The longest time that someone has held their breath underwater is 20 min 10 sec by Stig Åvall Severinsen (Denmark) in the shark tank at Kattegat Centre, Grenaa, Denmark, on 1 April 2010.

http://www.guinnessworldrecords.com/Search/Details/Longest-time-breath-held-voluntarily-(male)/56632.htm