Kito de Boer (born April 29, 1957) is a Dutch consultant, former senior McKinsey director and former diplomat, who served as head of mission of the Office of the Quartet from May 2015 to June 2017. The Quartet is a foursome of nations, international and supranational entities that mediates between Israelis and Palestinians. The Quartet comprises the United Nations, the United States, the European Union and Russia.[1] The Office of the Quartet, located in East Jerusalem, is mandated to take "tangible steps on the ground to advance the Palestinian economy and preserve the possibility of a two state solution."[2] As head, De Boer led on the Office of the Quartet's strategy on Palestinian economic and institutional empowerment, including matters concerning rule of law and economic development, as well as movement and access.[3]