Giridih Lok Sabha constituency is one of the 14 Lok Sabha constituencies in Jharkhand state in eastern India. This constituency covers parts of Giridih, Bokaro and Dhanbad districts.

Giridih district is one of the twenty-four districts of Jharkhand state, India, and Giridih is the administrative headquarters of this district. As of 2011 it is the third most populous district of Jh