Thomas Peter Thorvald Kristian Ferdinand Mortensen (16 August 1882 – 25 April 1998), known as an adult as Christian Mortensen, was a Danish-American supercentenarian. When he died, his age of 115 years and 252 days was the longest verified lifespan of any male in history until 28 December 2012, when Jiroemon Kimura of Japan surpassed this record. Mortensen was the first man confirmed to reach age 115 (in 1997).