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Mark Lowcock

The Under-Secretary-General and Emergency Relief Coordinator (USG/ERC) is responsible for the oversight of all emergencies requiring United Nations humanitarian assistance. He also acts as the central focal point for governmental, intergovernmental and non-governmental relief activities. The ERC also leads the Inter-Agency Standing Committee (IASC), a unique inter-agency forum for coordination, policy development and decision-making involving the key United Nations and non-United Nations humanitarian partners. The IASC was established in June 1992 in response to resolution 46/182. General Assembly resolution 48/57 affirmed the IASC's role as the primary mechanism for the inter-agency coordination of humanitarian assistance. In a country affected by a disaster or conflict, the ERC may appoint a Humanitarian Coordinator (HC) to ensure response efforts are well organized. The HC works with government, international organizations, non-governmental organizations and affected communities. An OCHA office will be established to support the HC. Mark Lowcock began the role of OCHA's USG/ERC on 1 September 2017. He succeeded Stephen O'Brien.

Ursula Mueller

Ms. Ursula Mueller is the Assistant Secretary-General for Humanitarian Affairs and Deputy Emergency Relief Coordinator in the United Nations Office for the Coordination of Humanitarian Affairs (OCHA). Ms. Mueller was appointed by UN Secretary-General António Guterres and began her assignment in March 2017. Prior to her current role as Assistant Secretary-General, Ms. Mueller spent over 30 years working in international affairs, global issues and development financing. She served as the Executive Director of Germany to the World Bank Group from September 2014 to February 2017, where she was responsible for strategy, policy and budgeting, and helped to foster closer cooperation between the World Bank and the United Nations.


Rashid Khalikov
Rashid KhalikovAssistant Secretary-General for Humanitarian Partnerships with the Middle East and Central Asia

Rashid Khalikov oversees OCHA’s efforts to forge new alliances with governments and partners of GCC and Central Asia countries. He oversees emergency response tools and partnership

Reena Ghelani Director, Operations and Advocacy Division

Reena Ghelani is OCHA’s Operations Director. She oversees the day-to-day management of all OCHA field operations worldwide and on behalf of the Emergency Relief Coordinator. She is the daily focal point for supporting Humanitarian Coordinators and the lead adviser to the Under-Secretary-General on operational decision-making.

Lisa Carty
Lisa Carty Director, Humanitarian Financing & Resource Mobilization Division
Lisa Carty leads OCHA’s work on humanitarian financing, including providing oversight and strategic direction for the UN’s Central Emergency Response Fund and Country-Based Pooled Funds. Her Division helps maximize the impact and accountability of OCHA-managed funding instruments, supports full resourcing of the global humanitarian system, and explores new financing approaches to ensure that growing humanitarian needs are met.

Ramesh Rajasingham
Ramesh Rajasingham Director, Coordination Division

Ramesh Rajasingham manages OCHA’s Inter-Organizational Services, the Assessment, Planning and Monitoring Branch and the Emergency Response Support Branch.


Yasser Baki
Yasser BakiChief of Staff, Office of the USG/ERC

Yasser Baki is Chief of Staff to the Emergency Relief Coordinator and Under-Secretary-General of OCHA.

Andrew Alspach
Andrew AlspachChief, Information Management Branch (IMB)

Andrew Alspach is Chief of the Information Management Branch, which provides information services for OCHA staff and humanitarian partners globally.

Lisa Doughten
Lisa Doughten Chief, Pooled Fund Management Branch (PFMB)

Lisa oversees the CERF Secretariat and the Country Based Pooled Fund Section to ensure maximum efficiency and effectiveness of the funds, as well as reaffirming their key role in the humanitarian financing architecture, setting out a clear path for achievement of their expanded funding targets through high-level partner engagement.

Rudi Müller
Rudi MüllerChief, Emergency Response Support Branch (ERSB)

As director of ERSB, Rudi oversees the Response Services Section, the Response Partnerships Section and the Readiness and Training Section.

Menada Wind-Andersen
Menada Wind-AndersenExecutive Officer

As head of the Executive Office (EO) in New York and Geneva, Menada Wind-Andersen is responsible for directing and overseeing the provision of OCHA administrative services including budget and finance, supply management and travel and human resources to both headquarters and the field. She also provides strategic advice and oversight on administrative matters to senior management.

Malene Kamp Jensen
Malene Kamp JensenChief, Strategic Communications Branch (SCB)

Malene Kamp Jensen oversees OCHA's work in global news, public advocacy, crisis communications, reporting, visualization and analysis, and other tools, guidance and services for clients in the field and HQ.

Hansjoerg Strohmeyer
Hansjoerg StrohmeyerChief, Policy Branch

Hansjoerg Strohmeyer joined OCHA in December 1998. He has been the Chief of OCHA’s Policy Development and Studies Branch since 2007. In this capacity, he also served as Secretary of the Secretary-General’s High-Level Task Force on the Global Food Crisis in 2008.

Marcy Vigoda
Marcy VigodaChief, Partnerships and Resource Mobilization Branch

Marcy Vigoda leads the development of OCHA's partnership-and-inclusivity agenda, ensuring that all appropriate resources help to meet people’s needs in emergencies.

Kelly DavidChief, Strategic Planning, Evaluations and Guidance Section

Kelly David oversees the strategic planning, monitoring and evaluation of OCHA’s work, and advises senior leadership on managing organizational risk.

Ignacio Leon-Garcia
Ignacio Leon-Garciaoic, Chief, Assessment, Planning & Monitoring Branch Branch

Ignacio Leon-Garcia is Chief of the Assessment, Planning & Monitoring Branch in OCHA Geneva. The branch facilitates and supports the development of policies, procedures, tools and technical guidance on the humanitarian programme cycle for the humanitarian community.