Jani Haapamäki (born 15 May 1982 in Kauhajoki) is a Finnish wrestler (Greco-Roman). He won a gold medal at the 2009 European Wrestling Championships in Greco-Roman wrestling at the 55 kg event. Haapamäki represents the Kauhajoen Karhu (Eng. Kauhajoki Bears) sportsclub and is coached by wrestler Juha Virtanen.