The Iranain International Group Theory Conference (IGTC) is a conference that is organized every year. The aim of this conference is to exchange research ideas among the group theorists. In addition, specialists in the subject of group theory can present their latest research works and encourage interested students to progress and widen their knowledge of group theory. The 16th Iranain International Group Theory Conference will be held in the Department of Mathematics, Shahid Rajaee Teacher Training University, Tehran, Iran on 1-2 February 2024. We welcome all group theorists around the world to participate in the conference as speakers and listeners.