Jani Lajunen (born June 16, 1990 in Espoo, Finland) is a Finnish forward in the Nashville Predators organization.
He played for the Blues Espoo in 2008-09 and 2009-10. The Predators picked him 201st overall in the 2008 NHL Entry Draft. They signed him to a three-year entry-level contract in May, 2010.
Lajunen has played for Finland in the 2008 IIHF World U18 Championships and the 2009 and 2010 World Junior Championships.