Ján Hudacký (born on 24 February 1959 in Vranov nad Topľou) is a Slovak politician and Member of the European Parliament with the Krestansko-demokraticke hnutie, part of the European People's Party and sits on the European Parliament's Committee on Industry, Research and Energy.
He is a substitute for the Committee on Economic and Monetary Affairs, a member of the Delegation for relations with Mercosur and a substitute for the Delegation for relations with Switzerland, Iceland and Norway and to the European Economic Area (EEA) Joint Parliamentary Committee.