Mark Jansen is 32 years old (birthdate: December 15, 1978).
Mark Jansen was born on December 15, 1978.
Mark Jansen was born on December 15, 1978.
As of the 2014 MLB season, Kenley Jansen is 26 years old.
Dan Jansen is 46 years old (birthdate: June 17, 1965).
Cas Jansen is 34 years old (birthdate: June 24, 1977).
Joeri Jansen is 32 years old (birthdate: May 28, 1979).
Matt Jansen is 33 years old (birthdate: October 20, 1977).
Wim Jansen is 64 years old (birthdate: October 28, 1946).
Sigurd Jansen is 78 years old (birthdate: March 4, 1932).
Laura Jansen is 35 years old (birthdate: March 4, 1977).
Theo Jansen is 63 years old (birthdate: March 14, 1948).
As of the end of the 2013-2014 NFL season J.J. Jansen is 28 years old.