Yaacov Bar-Siman-Tov (1946–2013) was a prominent international relations and conflict resolution scholar.
He was the Giancarlo Elia Valori Professor of International Relations at the Hebrew University of Jerusalem, where he held the "Chair for the Study of Peace and Regional Cooperation".
He was also the Director of the "Swiss Center for Conflict Research, Management and Resolution" at the Hebrew University, and the Head of the Jerusalem Institute for Israel Studies.
A recipient of the Israeli Association for International Studies' Lifetime Achievement Award, Professor Bar-Siman-Tov was a noted expert in the fields of management and resolution of international conflicts; negotiation; decision-making; and the Arab Israeli conflict.