Józef Zbigniew Gruszka (born 16 March 1947 in Kwiatków) is a Polish politician, Member of Parliament, representing Polish People's Party.
Gruszka is a graduate of the State Agricultural School (Panstwowe Technikum Rolnicze) and a member of Sejm, the lower house of the Polish parliament, elected in Kalisz constituency.
Since July 2004, he is a member of PKN Orlen investigation commission and, until April 2005, he was also the chairman of the commission.