OCHA's Senior Management
Senior Leadership Team
John Ging
Director, Coordination and Response Division (CRD)
John Ging is OCHA’s Operations Director. He oversees the day-to-day management of all OCHA field operations worldwide and on behalf of the Emergency Relief Coordinator. He is the daily focal point for supporting Humanitarian Coordinators. Mr. Ging is the lead adviser to the Under-Secretary-General on operational decision-making. Full bio>>

Rashid Khalikov
Director, OCHA Geneva
Rashid Khalikov is the Director of OCHA Geneva. He oversees emergency response tools and partnerships, and as the Chair of the Inter-Agency Standing Committee Working Group, provides support to inter-agency processes. Full bio>>

Gwi-Yeop Son
Director, Corporate Programmes
Gwi-Yeop Son is the Director of the Division for Corporate Programmes. She oversees OCHA’s administration and its work on communications, information services and policy development, and its management of the Central Emergency Response Fund. Full bio>>
Senior Management Team

Mark Dalton
Officer in charge, Information Services Branch (ISB)
Mark Dalton is Officer-in-Charge of the Information Services Branch, which provides information services for OCHA staff and humanitarian partners globally. Full bio>>

Lisa Doughten
Chief, CERF Secretariat
Lisa Doughten is the Chief of the United Nations Central Emergency Response Fund (CERF) secretariat, which manages the global fund that provides essential resources to humanitarian operations worldwide. Full bio>>

Helena Fraser
Change Manager
Officer-in-Charge, Partnerships and Resource Mobilization Branch
Helena Fraser is the Change Manager and Officer-in-Charge of OCHA’s Partnerships and Resource Mobilization Branch. She also leads the development of OCHA’s partnership-and-inclusivity agenda. Full bio>>

Rudolph Müller
Deputy Director, OCHA Geneva
Chief, Emergency Services Section (ESB)
Rudolf Müller is the Chief of the Emergency Services Branch and manages OCHA’s emergency tool and services. Full bio>>
Stephen O'Malley
Deputy Director, Coordination and Response Division (CRD)
Stephen O’Malley is the Deputy Director of the Coordination and Response Division, which manages OCHA’s regional and country offices, and ensures coherent responses to global emergencies. Full bio>>
Derk Segaar
Officer in charge, Communications Services Branch (CSB)
Derk Segaar is the acting Chief of the Communications Services Branch in New York. He oversees the development and implementation of OCHA’s public advocacy campaigns and a wide range of communications products, platforms and channels. Full bio>>
Hansjoerg Strohmeyer
Chief, Policy Development and Studies 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. Full bio>>
Andrew Wyllie
Change Manager
Officer-in-Charge, Programme Support Branch
Andrew Wyllie is Change Manager and Officer in Change of the Programme Support 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. Full bio>>





