Hannu Kalevi Manninen (born 17 April 1978 in Rovaniemi) is a Finnish nordic combined athlete.

He also has won the 7.5 km sprint event of the Nordic combined three times (2002, 2004, 2005) at the Holmenkollen ski festival.

Manninen announced his first retirement from competition on 29 May 2008 to focus on his family and a future career as an airline pilot.

He made his comeback to World Cup on 28 November 2009 in Ruka (Kuusamo), Finland, where he finished 2nd.

The first race in 2010 took place in Oberhof Germany where Manninen won for the 47th time in his sporting career.